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Magnificent Fire Urchin (Asthenosoma ijimai), off Pasar Wajo, Buton Island, Indonesia Stock Photo
RMD232PC–Magnificent Fire Urchin (Asthenosoma ijimai), off Pasar Wajo, Buton Island, Indonesia
Coleman Shrimp [Periclemenes colemani] on Toxic Sea Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesia. Stock Photo
RF2DN4A2T–Coleman Shrimp [Periclemenes colemani] on Toxic Sea Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesia.
The striking appearance of this fire urchin (Asthenosome ijimai: 20 cms.) represents a warning. Stings from its sharp multi-coloured toxic spines are extremely painful, and have occasionally been fatal to humans. Feeding on algae and seaweed, it moves mainly by means of hundreds of hydraulically-operated tube feet. In addition, it sometimes uses its long movable spines (some of which are visible in the top right and bottom left of the photograph) as stilts to climb over rocks and other small objects. As with all sea urchins, its five-fold symmetry is apparent in the picture. Bali, Indonesia. Stock Photo
RFM5FA05–The striking appearance of this fire urchin (Asthenosome ijimai: 20 cms.) represents a warning. Stings from its sharp multi-coloured toxic spines are extremely painful, and have occasionally been fatal to humans. Feeding on algae and seaweed, it moves mainly by means of hundreds of hydraulically-operated tube feet. In addition, it sometimes uses its long movable spines (some of which are visible in the top right and bottom left of the photograph) as stilts to climb over rocks and other small objects. As with all sea urchins, its five-fold symmetry is apparent in the picture. Bali, Indonesia.
Zebra crabs (Zebrida adamsii) dancing on a venomous sea urchin (Asthenosoma ijimai). at Owase Mie Japan Stock Photo
RFEBFFBT–Zebra crabs (Zebrida adamsii) dancing on a venomous sea urchin (Asthenosoma ijimai). at Owase Mie Japan
Brook's urchin shrimp, Allopontonia brookia, in a fire urchin, Asthenosoma ijimai, Komodo National Park Nusa Tenggara, Indonesia Stock Photo
RMCB5629–Brook's urchin shrimp, Allopontonia brookia, in a fire urchin, Asthenosoma ijimai, Komodo National Park Nusa Tenggara, Indonesia
Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m Stock Photo
RFPDB5E0–Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m
Arthrogorgia ijimai. 6 Jul 201550802 Stock Photo
RM2BF1841–Arthrogorgia ijimai. 6 Jul 201550802
Poisonous spines of Magnificent fire urchin (Asthenosoma ijimai) with Zebra urchin crab (Zebrida adamsii) sheltering, Anilao, Batangas, Luzon, Philipp Stock Photo
RM2BND507–Poisonous spines of Magnificent fire urchin (Asthenosoma ijimai) with Zebra urchin crab (Zebrida adamsii) sheltering, Anilao, Batangas, Luzon, Philipp
Dendrophyllia ijimai. 29 Mar 20171 Stock Photo
RM2BF10P9–Dendrophyllia ijimai. 29 Mar 20171
A pair of coleman shrimps on a fire urchin, Ambon, Maluku, Indonesia. Stock Photo
RMBPBMNW–A pair of coleman shrimps on a fire urchin, Ambon, Maluku, Indonesia.
Several white sea snails laying eggs on top of a fire urchin, Lembeh Strait, North Sulawesi, Indonesia. Stock Photo
RFD3KAHD–Several white sea snails laying eggs on top of a fire urchin, Lembeh Strait, North Sulawesi, Indonesia.
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. . Nannocnus ijimai n. sp. adult g.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas Stock Photo
RMRMH6Y1–. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. . Nannocnus ijimai n. sp. adult g.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas
. Dangerous marine animals. Marine animals. 50 DANGEROUS MARINE ANIMALS Venom Apparatus of Sea Urchins. The venom apparatus of sea urchins is believed to consist of their hollow venom-filled spines, and the globiferous pedicellariae. However, usually only one or the other is present within a single species of sea urchin.". Fig. 23. Top: Black long-spined sea urchin, Diadema setosum (Leske). Bottom left: Sea Urchin, Toxopneustes elegans Doderlein. Bottom right: Sea Urchin, Asthenosoma ijimai Yoshiwara. Part of the outer covering has been removed to show the test beneath. (Kreuzinger) Spine Stock Photo
RMPFJPKA–. Dangerous marine animals. Marine animals. 50 DANGEROUS MARINE ANIMALS Venom Apparatus of Sea Urchins. The venom apparatus of sea urchins is believed to consist of their hollow venom-filled spines, and the globiferous pedicellariae. However, usually only one or the other is present within a single species of sea urchin.". Fig. 23. Top: Black long-spined sea urchin, Diadema setosum (Leske). Bottom left: Sea Urchin, Toxopneustes elegans Doderlein. Bottom right: Sea Urchin, Asthenosoma ijimai Yoshiwara. Part of the outer covering has been removed to show the test beneath. (Kreuzinger) Spine
. Nannocnus ijimai n. sp. adult ^. Stock Photo
RMMCKJ2F–. Nannocnus ijimai n. sp. adult ^.
Coleman Shrimp [Periclemenes colemani] on Toxic Sea Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesia. Stock Photo
RF2AGG8BP–Coleman Shrimp [Periclemenes colemani] on Toxic Sea Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesia.
Zebra crab in fire urchin, Zebrida adamsii and Asthenosoma ijimai, Komodo National Park, Nusa Tenggara, Indonesia, Pacific Ocean Stock Photo
RMCB5626–Zebra crab in fire urchin, Zebrida adamsii and Asthenosoma ijimai, Komodo National Park, Nusa Tenggara, Indonesia, Pacific Ocean
Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m Stock Photo
RFPD9CEY–Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. TK.Mbrfcensen del. Figs.1-3,10,12-14,ASTHENOSOMA IJIMAI.F^ Fi^s.l5-n .PHORMCSOMA. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. London, Taylor and Francis, Ltd Stock Photo
RMRMN9E0–. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. TK.Mbrfcensen del. Figs.1-3,10,12-14,ASTHENOSOMA IJIMAI.F^ Fi^s.l5-n .PHORMCSOMA. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. London, Taylor and Francis, Ltd
. Dangerous marine animals. Marine animals. SHEATH OF MUSCLE & CONNECTIVE TISSUE. Fig. 24. A venomous aboral spine of the sea urchin, Asthenosoma ijimai. (After Mortensen) of its globe-shaped head, is called the globiferous pedicellariae, and serves as a venom organ. They are comprised of two parts, a ter- minal, swollen, conical head, which is armed with a set of calcareous pincer-like valves or jaws, and a supporting stalk (Fig. 25). The head is attached to the stalk either directly by the muscles, or by a long flexible neck. On the inner side of each valve is found a small elevation pro Stock Photo
RMPFJPK6–. Dangerous marine animals. Marine animals. SHEATH OF MUSCLE & CONNECTIVE TISSUE. Fig. 24. A venomous aboral spine of the sea urchin, Asthenosoma ijimai. (After Mortensen) of its globe-shaped head, is called the globiferous pedicellariae, and serves as a venom organ. They are comprised of two parts, a ter- minal, swollen, conical head, which is armed with a set of calcareous pincer-like valves or jaws, and a supporting stalk (Fig. 25). The head is attached to the stalk either directly by the muscles, or by a long flexible neck. On the inner side of each valve is found a small elevation pro
. Figs.1& '2. Porocottus mgrescens lanaka. Figs. 3 & 4. Porocottus ijimai Tanaka. Stock Photo
RMMCKHKG–. Figs.1& '2. Porocottus mgrescens lanaka. Figs. 3 & 4. Porocottus ijimai Tanaka.
Zebra Crab or Urchin Crab [Zebrida adamsii] on Fire Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesial. Stock Photo
RF2DE2CX1–Zebra Crab or Urchin Crab [Zebrida adamsii] on Fire Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesial.
Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m Stock Photo
RFPD9CFK–Orange cup coral, Dendrophyllia ijimai Yabe & Eguchi, 1934, spreading its translucent tentacles. Owase, Mie, Japan. -18m
Orange cup coral (Dendrophyllia ijimai Yabe & Eguchi, 1934 ) extending beautiful translucent tentacles. Owase, Mie, Japan Stock Photo
RFKMEFJ7–Orange cup coral (Dendrophyllia ijimai Yabe & Eguchi, 1934 ) extending beautiful translucent tentacles. Owase, Mie, Japan
Venomous sea urchin (Asthenosoma ijimai). at Owase, Mie, Japan. Stock Photo
RFEKM6Y3–Venomous sea urchin (Asthenosoma ijimai). at Owase, Mie, Japan.
venom sea urchin（Asthenosoma ijimai) Stock Photo
RFHH1KRP–venom sea urchin（Asthenosoma ijimai)
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. Annot. Zool. Jap. Vol. VI. PI. IX.. Tanaka : Fishes of Sakhalin. 1,2. Porocottus nigrescens, n. sp 3,4. Porocottus ijimai, n. sp.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas Stock Photo
RMRMH7NB–. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. Annot. Zool. Jap. Vol. VI. PI. IX.. Tanaka : Fishes of Sakhalin. 1,2. Porocottus nigrescens, n. sp 3,4. Porocottus ijimai, n. sp.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas
. L?NNWEttG, UPS Jcurn. Coll.?ci. Tokyo, vol.23, art.14, pp. 3T3 >. ?Aves-IHlrusdlnldlTEQ „==lilparia r. i.?Li?NNWEfiG)? ??????????? 17. Coeia ijimai u. T?kakuka,19??, Tokyo zool. Mag., vol.34, no. 401• ?Nenlertini——HubrecDtlclaB? ?? ?????? la. cnmhpiyra -IJ-l?uti Yai. ckada, 1917, Ax-nor Zool. Jai)., vol.9, j>t. ??— ???? Jp Fbli.he.nza owld21.jim{B L. STKJNKGEH. 1893. prop Stock Photo
RMMCKEFJ–. L?NNWEttG, UPS Jcurn. Coll.?ci. Tokyo, vol.23, art.14, pp. 3T3 >. ?Aves-IHlrusdlnldlTEQ „==lilparia r. i.?Li?NNWEfiG)? ??????????? 17. Coeia ijimai u. T?kakuka,19??, Tokyo zool. Mag., vol.34, no. 401• ?Nenlertini——HubrecDtlclaB? ?? ?????? la. cnmhpiyra -IJ-l?uti Yai. ckada, 1917, Ax-nor Zool. Jai)., vol.9, j>t. ??— ???? Jp Fbli.he.nza owld21.jim{B L. STKJNKGEH. 1893. prop
Zebra Crab or Urchin Crab [Zebrida adamsii] on Fire Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesial. Stock Photo
RF2DE2CTW–Zebra Crab or Urchin Crab [Zebrida adamsii] on Fire Urchin [Asthenosoma ijimai]. Lembeh Strait, North Sulawesi, Indonesial.
Urchin siphonfish [Siphamia versicolor] sheltering in the spines of a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Norht Sulawesi, I Stock Photo
RFT34P40–Urchin siphonfish [Siphamia versicolor] sheltering in the spines of a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Norht Sulawesi, I
Two Zebra Crabs or Urchin Crab [Zebrida adamsii] on a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Indonesia. Indo-West Pacific. Stock Photo
RFT3FWA9–Two Zebra Crabs or Urchin Crab [Zebrida adamsii] on a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Indonesia. Indo-West Pacific.
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Jk Mortens en del.. Fi^s. 1-3,10,12-14. ASTHENOSOMA IJIMAI • F,ge. 4.-9,ll,18-20,AR^,OSOMA OWSTENl F,^s,15-17.PHORMOSOMA V'ERTICILLATUM,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. London, Taylor and Francis, Ltd Stock Photo
RMRMN9AX–. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Jk Mortens en del.. Fi^s. 1-3,10,12-14. ASTHENOSOMA IJIMAI • F,ge. 4.-9,ll,18-20,AR^,OSOMA OWSTENl F,^s,15-17.PHORMOSOMA V'ERTICILLATUM,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. London, Taylor and Francis, Ltd
Two Zebra Crabs or Urchin Crab [Zebrida adamsii] on a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Indonesia. Indo-West Pacific. Stock Photo
RFT3FWAD–Two Zebra Crabs or Urchin Crab [Zebrida adamsii] on a Toxic Ijima's sea urchin [Asthenosoma ijimai]. Lembeh Strait, Indonesia. Indo-West Pacific.
Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi Stock Photo
RFPDTDRH–Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 26 S. AMEMIYA AND R. B. EMLET 1st and 3rd pairs of arms) of a pluteus. Fenestrated skeletal rods are only known for these arm pairs in pluteus larvae (Mortensen, 1921; Emlet, 1982). In typical plutei, the sec- ond pair of arms to form is the anterolateral pair that always contains simple calcareous rods (Mortensen, 1921). Each anterolateral rod is an outgrowth from the pair of spicules that also form the postoral rods and body skel- eton. The postoral rods are so reduced in A. ijimai that anterolateral rods are absent. There Stock Photo
RMRHMYFW–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 26 S. AMEMIYA AND R. B. EMLET 1st and 3rd pairs of arms) of a pluteus. Fenestrated skeletal rods are only known for these arm pairs in pluteus larvae (Mortensen, 1921; Emlet, 1982). In typical plutei, the sec- ond pair of arms to form is the anterolateral pair that always contains simple calcareous rods (Mortensen, 1921). Each anterolateral rod is an outgrowth from the pair of spicules that also form the postoral rods and body skel- eton. The postoral rods are so reduced in A. ijimai that anterolateral rods are absent. There
Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi Stock Photo
RFPDTDR9–Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi
. Dangerous marine animals. Marine animals. SHEATH OF MUSCLE & CONNECTIVE TISSUE. Fig. 24. A venomous aboral spine of the sea urchin, Asthenosoma ijimai. (After Mortensen) of its globe-shaped head, is called the globiferous pedicellariae, and serves as a venom organ. They are comprised of two parts, a ter- minal, swollen, conical head, which is armed with a set of calcareous pincer-like valves or jaws, and a supporting stalk (Fig. 25). The head is attached to the stalk either directly by the muscles, or by a long flexible neck. On the inner side of each valve is found a small elevation pro Stock Photo
RMRD21XF–. Dangerous marine animals. Marine animals. SHEATH OF MUSCLE & CONNECTIVE TISSUE. Fig. 24. A venomous aboral spine of the sea urchin, Asthenosoma ijimai. (After Mortensen) of its globe-shaped head, is called the globiferous pedicellariae, and serves as a venom organ. They are comprised of two parts, a ter- minal, swollen, conical head, which is armed with a set of calcareous pincer-like valves or jaws, and a supporting stalk (Fig. 25). The head is attached to the stalk either directly by the muscles, or by a long flexible neck. On the inner side of each valve is found a small elevation pro
Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi Stock Photo
RFPDTDRT–Fire urchin (Asthenosoma ijimai). This sea urchin has venomous spines and is able to inflict painful stings. Komodo National Park, Indonesia. (Digi
. Biology of the seas of the U.S.S.R. Marine biology -- Soviet Union; Hydrology -- Soviet Union. THE SEA OF OKHOTSK 807 pacifica, reaching 1 m in height, and comparatively small but exquisite fan- like colonies of Plumarella longispina, Caliptrophora ijimai and others are adapted to the upper division of the continental shelf. On the soft soils of the. MORE THAN SO 25-50 10-25 | I LESS THAN 10 Fig. 401. Quantitative distribution (in g/m2) of soil-swallowing benthic forms of the Sea of Okhotsk (Savilov). upper horizon large patches are occupied by the Brisaster latifrons biocoe- nosis.' The fau Stock Photo
RMRHJRPP–. Biology of the seas of the U.S.S.R. Marine biology -- Soviet Union; Hydrology -- Soviet Union. THE SEA OF OKHOTSK 807 pacifica, reaching 1 m in height, and comparatively small but exquisite fan- like colonies of Plumarella longispina, Caliptrophora ijimai and others are adapted to the upper division of the continental shelf. On the soft soils of the. MORE THAN SO 25-50 10-25 | I LESS THAN 10 Fig. 401. Quantitative distribution (in g/m2) of soil-swallowing benthic forms of the Sea of Okhotsk (Savilov). upper horizon large patches are occupied by the Brisaster latifrons biocoe- nosis.' The fau
. Dangerous marine animals. Marine animals. 50 DANGEROUS MARINE ANIMALS Venom Apparatus of Sea Urchins. The venom apparatus of sea urchins is believed to consist of their hollow venom-filled spines, and the globiferous pedicellariae. However, usually only one or the other is present within a single species of sea urchin.". Fig. 23. Top: Black long-spined sea urchin, Diadema setosum (Leske). Bottom left: Sea Urchin, Toxopneustes elegans Doderlein. Bottom right: Sea Urchin, Asthenosoma ijimai Yoshiwara. Part of the outer covering has been removed to show the test beneath. (Kreuzinger) Spine Stock Photo
RMRD21XY–. Dangerous marine animals. Marine animals. 50 DANGEROUS MARINE ANIMALS Venom Apparatus of Sea Urchins. The venom apparatus of sea urchins is believed to consist of their hollow venom-filled spines, and the globiferous pedicellariae. However, usually only one or the other is present within a single species of sea urchin.". Fig. 23. Top: Black long-spined sea urchin, Diadema setosum (Leske). Bottom left: Sea Urchin, Toxopneustes elegans Doderlein. Bottom right: Sea Urchin, Asthenosoma ijimai Yoshiwara. Part of the outer covering has been removed to show the test beneath. (Kreuzinger) Spine
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 6. A 75.5-h larvae of Asthenosoma ijimai. a. Light micrograph of live specimen shows five primary podia just beginning to form on left side of larva. Scale bar, 0.5 mm. b. Frontal section with continued hydrocoelic (and podial) development. The hydrocoel (H) is almost completely separated from the archenteron (A). Same scale as a. c. Detail of hydrocoel (H) with parts of two podial extensions from a different section of the same larva as b. Scale bar. 100 ^m. showed the hydrocoelic compartments with thickened epitheli Stock Photo
RMRHMYKG–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 6. A 75.5-h larvae of Asthenosoma ijimai. a. Light micrograph of live specimen shows five primary podia just beginning to form on left side of larva. Scale bar, 0.5 mm. b. Frontal section with continued hydrocoelic (and podial) development. The hydrocoel (H) is almost completely separated from the archenteron (A). Same scale as a. c. Detail of hydrocoel (H) with parts of two podial extensions from a different section of the same larva as b. Scale bar. 100 ^m. showed the hydrocoelic compartments with thickened epitheli
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHUR1OID DEVELOPMENT. REVISITED 25. Figure 9. Skeletal development in various, cleared stages of larvae of Asthenosoma ijimai. All larvae are viewed from the dorsal side in partially polarized light, a. A 63-h larva shows no evidence of calcareous skeletal elements. Scale bar, 0.5 mm. b. Two 75.5-h specimens show the very first signs of skeletal development. One calcareous element is associated with each para-arm. The specimen on the right was an additional calcareous element centrally located between the para-arms. Sa Stock Photo
RMRHMYGK–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHUR1OID DEVELOPMENT. REVISITED 25. Figure 9. Skeletal development in various, cleared stages of larvae of Asthenosoma ijimai. All larvae are viewed from the dorsal side in partially polarized light, a. A 63-h larva shows no evidence of calcareous skeletal elements. Scale bar, 0.5 mm. b. Two 75.5-h specimens show the very first signs of skeletal development. One calcareous element is associated with each para-arm. The specimen on the right was an additional calcareous element centrally located between the para-arms. Sa
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. V?** Figure 5. A 63-h larvae of Asthenosoma ijimai. all oriented with the anterior end toward the top of the figure, a. SEM of a whole larva, right ventral view (dorsal side is on the left) shows two right para-arms (arrows) and the blastopore (Bp). Scale bar. 0.5 mm b. Close-up of uniformly ciliated epidermis. Scale bar, 25 nm. c. Frontal section shows the leftward oriented archenteron with coelomic components of podia near its tip. The hydrocoel (H) is developing before being separated from the archenteron (A). (This larva Stock Photo
RMRHMYMT–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. V?** Figure 5. A 63-h larvae of Asthenosoma ijimai. all oriented with the anterior end toward the top of the figure, a. SEM of a whole larva, right ventral view (dorsal side is on the left) shows two right para-arms (arrows) and the blastopore (Bp). Scale bar. 0.5 mm b. Close-up of uniformly ciliated epidermis. Scale bar, 25 nm. c. Frontal section shows the leftward oriented archenteron with coelomic components of podia near its tip. The hydrocoel (H) is developing before being separated from the archenteron (A). (This larva
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24 S. AMEMIYA AND R. B. EMLET. Figure 8. Later stages of larval development of Asthenoxoma ijimai. For all specimens, the anterior end is to the right of figure, a. Ventral side of live specimen nine days after fertilization. Scale bar, 0.5 mm. b. Ventral side of live specimen 14 days after fertilization. The larval para-arms and anterior yolky mass have been contorted toward the juvenile aboral surface. P, podia; Sp, spines. Same scale as a. c. Fourteen-day post fertilization, approximate frontal section at the level of the Stock Photo
RMRHMYHJ–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24 S. AMEMIYA AND R. B. EMLET. Figure 8. Later stages of larval development of Asthenoxoma ijimai. For all specimens, the anterior end is to the right of figure, a. Ventral side of live specimen nine days after fertilization. Scale bar, 0.5 mm. b. Ventral side of live specimen 14 days after fertilization. The larval para-arms and anterior yolky mass have been contorted toward the juvenile aboral surface. P, podia; Sp, spines. Same scale as a. c. Fourteen-day post fertilization, approximate frontal section at the level of the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHURIOID DEVELOPMENT, REVISITED 23. Figure 7. A 101-h larvae of Asthenosoma ijimai. a. Light micrograph of dorsal side of live specimen. Note the hydropore (Hp) and four para-arms (to right). The anterior end is to the left of figure. Scale bar, 0.5 mm. b. Light micrograph of ventral side of live specimen. The anterior end is to the right of figure. Same scale as a. c. Medial frontal section through larva shows developing internal structures and juvenile oral region. P, podia; Rs, right somatocoel; Ls. left somatocoel; Stock Photo
RMRHMYJX–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHURIOID DEVELOPMENT, REVISITED 23. Figure 7. A 101-h larvae of Asthenosoma ijimai. a. Light micrograph of dorsal side of live specimen. Note the hydropore (Hp) and four para-arms (to right). The anterior end is to the left of figure. Scale bar, 0.5 mm. b. Light micrograph of ventral side of live specimen. The anterior end is to the right of figure. Same scale as a. c. Medial frontal section through larva shows developing internal structures and juvenile oral region. P, podia; Rs, right somatocoel; Ls. left somatocoel;
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 106 A. L. PARKS ET AL. Figure 8. Asthenosoma ijimai lacks a vestibule. 6 nm Alizarin red and methylene blue stained section of a 101-h A ijimai larvae showing one psuedo arm (P) and a developing tube foot (TF). Embryos of sev- eral stages (35, 45, 56, 75, and 101 h) were serial sectioned and no evi- dence of a vestibule was found at any stage across the developing adult rudiment. Scale bar = early development in lecithotrophic echinoids of three, independently evolved euechinoid lineages [Echinome- tridae, Echinothuriidae, T Stock Photo
RMRHN1XA–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 106 A. L. PARKS ET AL. Figure 8. Asthenosoma ijimai lacks a vestibule. 6 nm Alizarin red and methylene blue stained section of a 101-h A ijimai larvae showing one psuedo arm (P) and a developing tube foot (TF). Embryos of sev- eral stages (35, 45, 56, 75, and 101 h) were serial sectioned and no evi- dence of a vestibule was found at any stage across the developing adult rudiment. Scale bar = early development in lecithotrophic echinoids of three, independently evolved euechinoid lineages [Echinome- tridae, Echinothuriidae, T
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. JAPANESE HERMIT-CRABS. 383 Note : A single female from Prov. Kii in the Sci. Coll. Mus., showing some insignificant points of disagreement from Whitelegge's description. Pavapaguriis ijimai, n. sp. (Textfig. 4). Carapace as long as broad, with tufts of long, anteriorly direct- ed setae distributed mainly in the middle transverse zone. The. Textfig. 4. Parapagurus ijimai, n. sp. a, carapace ; right cheliped ; c, left cheliped ; d, 2nd right leg; e, 3rd right legs;/, 4th left leg; g, 5th left leg; h, ist right abdominal appendage ; Stock Photo
RMRMGA41–. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. JAPANESE HERMIT-CRABS. 383 Note : A single female from Prov. Kii in the Sci. Coll. Mus., showing some insignificant points of disagreement from Whitelegge's description. Pavapaguriis ijimai, n. sp. (Textfig. 4). Carapace as long as broad, with tufts of long, anteriorly direct- ed setae distributed mainly in the middle transverse zone. The. Textfig. 4. Parapagurus ijimai, n. sp. a, carapace ; right cheliped ; c, left cheliped ; d, 2nd right leg; e, 3rd right legs;/, 4th left leg; g, 5th left leg; h, ist right abdominal appendage ;
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 3. A 51.5-h larvae of Asthenosoma ijimai, all with anterior end up. a. Light micrograph of a live larva with dorsal swelling on the right. Scale bar, 1 mm. b. Medial sagittal section through late gastrula. The tip of archenteron (A) has curved toward the ventral surface. Same scale as a. c. Frontal section shows a small outpocketing on the left side of the archenteron (A) that extends dorsally in other sections. Scale bar. 200 /im. Sections of this 21.5 h stage showed anucleate, yolky cytoplasm being released into the Stock Photo
RMRHMYWT–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 3. A 51.5-h larvae of Asthenosoma ijimai, all with anterior end up. a. Light micrograph of a live larva with dorsal swelling on the right. Scale bar, 1 mm. b. Medial sagittal section through late gastrula. The tip of archenteron (A) has curved toward the ventral surface. Same scale as a. c. Frontal section shows a small outpocketing on the left side of the archenteron (A) that extends dorsally in other sections. Scale bar. 200 /im. Sections of this 21.5 h stage showed anucleate, yolky cytoplasm being released into the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHURIOID DEVELOPMENT, REVISITED 17. Figure 1. Early embryonic stages ofAsthenosoma ijimai. a. Sixteen-cell stage embryos randomly oriented, show that all cells are approximately the same diameter after the fourth cleavage. Scale bar. 1 mm. b. SEM of a 21.5-h, lobate blastula. Arrowheads mark pits in ectoderm. Scale bar, 1 mm. c. Close-up SEM of ectodermal pit marked by right arrow in b. Scale bar, 25 nm. d. Section of a 21,5-h blastula shows yolky cytoplasm in the blastocoel and ectodermal pits (arrowheads). Same scale Stock Photo
RMRHN003–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOTHURIOID DEVELOPMENT, REVISITED 17. Figure 1. Early embryonic stages ofAsthenosoma ijimai. a. Sixteen-cell stage embryos randomly oriented, show that all cells are approximately the same diameter after the fourth cleavage. Scale bar. 1 mm. b. SEM of a 21.5-h, lobate blastula. Arrowheads mark pits in ectoderm. Scale bar, 1 mm. c. Close-up SEM of ectodermal pit marked by right arrow in b. Scale bar, 25 nm. d. Section of a 21,5-h blastula shows yolky cytoplasm in the blastocoel and ectodermal pits (arrowheads). Same scale
. Dobutsugaku zasshi. Zoology; Zoology. Nannocnus ijimai n. sp. adult ^.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Dobutsu Gakkai; Tokyo Dobutsu Gakkai. Tokyo : Tokyo Dobutsu Gakkai Stock Photo
RMRC9XF7–. Dobutsugaku zasshi. Zoology; Zoology. Nannocnus ijimai n. sp. adult ^.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Dobutsu Gakkai; Tokyo Dobutsu Gakkai. Tokyo : Tokyo Dobutsu Gakkai
. Dobutsugaku zasshi. Zoology; Zoology. ???????????? ?I Fig. 3. Fig. 4.. Figs.1& '2. Porocottus mgrescens lanaka. Figs. 3 & 4. Porocottus ijimai Tanaka.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Dobutsu Gakkai; Tokyo Dobutsu Gakkai. Tokyo : Tokyo Dobutsu Gakkai Stock Photo
RMRCCRFC–. Dobutsugaku zasshi. Zoology; Zoology. ???????????? ?I Fig. 3. Fig. 4.. Figs.1& '2. Porocottus mgrescens lanaka. Figs. 3 & 4. Porocottus ijimai Tanaka.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Nihon Dobutsu Gakkai; Tokyo Dobutsu Gakkai. Tokyo : Tokyo Dobutsu Gakkai
. Dobutsugaku zasshi. Zoology; Zoology. (151) ?????????? ??????? 14. campt?ceras ijimai S. HM.ASE, Tokyo! Z81; Maw., .vol.34,IIP 4)1. ?Gastrojpoda-planoL-Tblldae? ?? 1 ?????? cflslelasma iiimai T0PSENT,19?1, v--;ponp nouv. ^. Acol.es, J>M>. 4^501 4??.?HexactinellidalEuretiid8? ??— ????? 1?. L?NNWEttG, UPS Jcurn. Coll.?ci. Tokyo, vol.23, art.14, pp. 3T3 >. ?Aves-IHlrusdlnldlTEQ „==lilparia r. i.?Li?NNWEfiG)? ??????????? 17. Coeia ijimai u. T?kakuka,19??, Tokyo zool. Mag., vol.34, no. 401• ?Nenlertini——HubrecDtlclaB? ?? ?????? la. cnmhpiyra -IJ-l?uti Yai. ckada, 1917, Ax-nor Zool. Jai) Stock Photo
RMRCC87T–. Dobutsugaku zasshi. Zoology; Zoology. (151) ?????????? ??????? 14. campt?ceras ijimai S. HM.ASE, Tokyo! Z81; Maw., .vol.34,IIP 4)1. ?Gastrojpoda-planoL-Tblldae? ?? 1 ?????? cflslelasma iiimai T0PSENT,19?1, v--;ponp nouv. ^. Acol.es, J>M>. 4^501 4??.?HexactinellidalEuretiid8? ??— ????? 1?. L?NNWEttG, UPS Jcurn. Coll.?ci. Tokyo, vol.23, art.14, pp. 3T3 >. ?Aves-IHlrusdlnldlTEQ „==lilparia r. i.?Li?NNWEfiG)? ??????????? 17. Coeia ijimai u. T?kakuka,19??, Tokyo zool. Mag., vol.34, no. 401• ?Nenlertini——HubrecDtlclaB? ?? ?????? la. cnmhpiyra -IJ-l?uti Yai. ckada, 1917, Ax-nor Zool. Jai)
. Dobutsugaku zasshi. Zoology; Zoology. Lã²NNWEttG, UPS Jcurn. Coll.ã²ci. Tokyo, vol.23, art.14, pp. 3T3 >. ãAves-IHlrusdlnldlTEQ â==lilparia r. i.ã¸Liã²NNWEfiG)ã ååã·ã£ã¦ãããã¡æ¨ºå¤ª 17. Coeia ijimai u. Tã¬kakuka,19ã«ã«, Tokyo zool. Mag., vol.34, no. 401⢠ãNenlertiniââHubrecDtlclaBã½ åå æ±ã浦å館山 la. cnmhpiyra -IJ-läºuti Yai. ckada, 1917, Ax-nor Zool. Jai)., vol.9, j>t. ååâ ä¼è±æ°å³¶ Jp Fbli.he.nza owld21.jim{B L. STKJNKGEH. 1893. prop. u. S. Nat. Mus., vol.16, :p. 637. ãAï¼es â Em!3erizidãã ååã£ãã¸ãããã¸å£ Emvd-ãcejpkalus 21a STEJWEGER,18ã¬3, Journ. Sci. coll. T?ok,yo, vol.13, pt. Stock Photo
RMRCC87P–. Dobutsugaku zasshi. Zoology; Zoology. Lã²NNWEttG, UPS Jcurn. Coll.ã²ci. Tokyo, vol.23, art.14, pp. 3T3 >. ãAves-IHlrusdlnldlTEQ â==lilparia r. i.ã¸Liã²NNWEfiG)ã ååã·ã£ã¦ãããã¡æ¨ºå¤ª 17. Coeia ijimai u. Tã¬kakuka,19ã«ã«, Tokyo zool. Mag., vol.34, no. 401⢠ãNenlertiniââHubrecDtlclaBã½ åå æ±ã浦å館山 la. cnmhpiyra -IJ-läºuti Yai. ckada, 1917, Ax-nor Zool. Jai)., vol.9, j>t. ååâ ä¼è±æ°å³¶ Jp Fbli.he.nza owld21.jim{B L. STKJNKGEH. 1893. prop. u. S. Nat. Mus., vol.16, :p. 637. ãAï¼es â Em!3erizidãã ååã£ãã¸ãããã¸å£ Emvd-ãcejpkalus 21a STEJWEGER,18ã¬3, Journ. Sci. coll. T?ok,yo, vol.13, pt.
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