Glycera tesselata Grube, 1863

Glycera tesselata Grube, 1863

( Figs 6 View FIGURE 6 , 10 View FIGURE 10 E)

Glycera tesselata Grube, 1863: 41 ; pl. 4, figs 4, 4a. Synonyms see Böggemann 2002

Material examined. AM W. 47204, MI QLD 2444, af/ 5.3 / 34 /1.0/ 0.7; AM W. 45499, MI QLD 2445, cs/ 20 / 60 / 1.4 / 0.9, part of proboscis on SEM stub; AM W. 44667, MI QLD 2410, cs/ 9 / 52 /1.0/ 0.6; AM W. 46146, Lizard Island, Granite Bluff, 14 ° 39 'S 145 ° 27 'E, reef rock, 6 m, by hand from SCUBA, 26 Aug 1976, af/ 4.5 / 42 / 0.8 / 0.5; AM W. 45498, MI QLD 2446, cs/ 6 / 51 / 1.2 / 0.8; AM W. 40427, Lizard Island, Chinaman's Head, 8 Apr 1977, cs/ 6.5 / 49 / 0.7 / 0.4; AM W. 46133, off Chinaman's Point, 7 m, Apr 1977, cs/ 10 / 50 / 0.7 / 0.4; AM W. 44576, MI QLD 2376, cs/ 7 / 39 / 0.6 / 0.3; AM W. 44222, MI QLD 2371, cs/ 19 / 76 / 1.2 / 0.7; AM W. 47218, MI QLD 2371 (2), cs/ 18 / 60 / 1.2 / 0.7, cs/ 12.5 / 57 / 1.2 / 0.7, parts of proboscis on SEM stub; AM W. 44258, MI QLD 2371, cs/ 20 / 54 / 1.1 / 0.6; AM W. 44854, MI QLD 2423, cs/ 9 / 53 / 1.1 / 0.7; AM W. 40426, Lizard Island Group, fringing reef between Bird Islet and South Island, 12 m, 10 Apr 1977, cs/ 8 / 47 / 0.9 / 0.5; AM W. 41210, Lizard Island, Bommie Bay, 14 ° 39 ' 35 "S 145 ° 28 ' 16 "W, coral rubble, 7.4–10.5 m, by hand from SCUBA, 9 Sep 2010, CReefs, af/ 6.5 / 59 / 1.3 / 0.9; AM W. 44251, MI QLD 2380, cs/ 2.3 / 33 / 0.5 / 0.3; AM W. 44291, MI QLD 2382, cs/ 6.2 / 45 / 0.8 / 0.5; AM W. 44300, MI QLD 2383, af/ 2.5 / 23 / 0.5 / 0.3; AM W. 44322, MI QLD 2387, cs/ 3.2 /ca. 37 / 0.5 / 0.3; AM W. 44844, MI QLD 2387 (2), cs/ 2.7 / 31 / 0.5 / 0.3, af/ 3.2 / 33 / 0.6 / 0.3; AM W. 41211, Yonge Reef, 14 ° 34 ' 40 "S 145 ° 37 'E, coral rubble, 8 m, by hand on snorkel, 10 Sep 2010, CReefs, cs/ 4.6 / 46 / 0.8 / 0.4; AM W. 40748, Yonge Reef, back reef, 14 ° 36 'S 145 ° 37 'E, 2 m, 19 Jan 1975, cs/ 5 / 40 / 0.9 / 0.5; AM W. 40750, Yonge Reef, back reef, 14 ° 36 'S 145 ° 37 'E, 5 m, 7 Jan 1975, cs/ 3.2 / 34 / 0.5 / 0.3; AM W. 47208, Yonge Reef, back reef, 14 ° 36 'S 145 ° 37 'E, dead Acropora heavily encrusted with Lithothamnion , 2 m, 19 Jan 1975, af/ 3.5 / 23 / 0.5 / 0.3; AM W. 46136, Yonge Reef, outer slope, 14 ° 36 'S 145 ° 38 'E, solid reef habitat, 3 m, 10 Jan 1975, cs/ 11.5 / 59 / 1.3 / 0.8, part of proboscis on SEM stub; AM W. 46145, Outer Yonge Reef, reef rock with Lithothamnion and Halimeda , 30 m, by hand from SCUBA, 24 Jan 1977, cs/ 5 / 35 / 0.5 / 0.3; AM W. 46200 (few), Outer Yonge Reef, dead coral, 9 m, by hand from SCUBA, 15 Jan 1977, cs/ 7 / 43 / 0.7 / 0.3, af/ 7 / 34 / 0.8 / 0.4, af/ 5 / 30 / 0.5 / 0.3; AM W. 46202 (few), Outer Yonge Reef, Halimeda covering pink coralline algae, 20 m, 21 Jan 1977, cs/ 7 / 41 / 0.7 / 0.4, cs/ 4.2 / 35 / 0.5 / 0.3, cs/ 2.3 / 28 / 0.3 / 0.1, cs/ 2.3 / 27 / 0.3 / 0.1, cs/ 2.2 / 23 / 0.3 / 0.1, cs/ 2.2 / 23 / 0.3 / 0.1, cs/ 2.1 / 21 / 0.3 / 0.1, cs/ 2 / 26 / 0.4 / 0.2, cs/ 2 / 21 / 0.3 / 0.1, cs/ 1.9 / 21 / 0.3 / 0.1, cs/ 1.5 / 17 / 0.3 / 0.1, cs/ 1.4 / 20 / 0.3 / 0.1, cs/ 1.4 / 20 / 0.3 / 0.1, cs/ 1.1 / 18 / 0.2 / 0.1, af/ 5.3 / 36 / 0.7 / 0.4, af/ 3.2 / 38 / 0.3 / 0.1, af/ 1.7 / 17 / 0.3 / 0.1, af/ 1.5 / 17 / 0.3 / 0.1, af/ 1.5 / 16 / 0.3 / 0.1, af/ 1.3 / 13 / 0.3 / 0.1, af/ 1.2 / 15 / 0.3 / 0.1, af/ 1.2 / 14 / 0.3 / 0.1, af/ 1 / 12 / 0.3 / 0.1; AM W. 47213 (3), Outer Yonge Reef, bommie surrounded with rubble, covered in Lithothamnion , 30 m, 25 Jan 1977, cs/ 6.5 / 47 / 0.5 / 0.2, cs/ 6 / 53 / 0.5 / 0.2, cs/ 4.7 / 37 / 0.5 / 0.2; AM W. 47214 (2), Outer Yonge Reef, isolated bommie, reef rock, 40 m, 3 Nov 1977, cs/ 5.5 / 38 / 0.7 / 0.4, af/ 3 / 26 / 0.3 / 0.2; AM W. 46206, Outer Yonge Reef, large bommie, pink Lithothamnion and filamentous algae, 40 m, 6 Nov 1977; AM W. 44171, MI QLD 2359, af/ 7 / 38 / 1.1 / 0.6; AM W. 44172, MI QLD 2359 (2), cs/ 8.5 / 51 / 1.1 / 0.7, cs/ 8.5 / 48 /1.0/ 0.6.

Diagnosis. Proboscidial papillae mainly digitiform with straight, median, longitudinal ridge; ailerons with deeply incised bases; parapodia of mid-body with slightly longer neuropodial than notopodial prechaetal lobes and two short postchaetal lobes; branchiae absent.

Description. Body up to 20 mm long with up to 76 chaetigers. Mid-body segments bi-annulate.

Conical prostomium consisting of about 8–9 rings; terminal ring with four appendages and basal one with pair of nuchal organs ( Fig. 6 View FIGURE 6 A).

Proboscis with two types of papillae: l. numerous digitiform papillae with straight, median, longitudinal ridge on posterior surface and sometimes additional V-shaped ridge near tip; 2. isolated, slightly shorter and broader, conical papillae without distinct ridges ( Figs 6 View FIGURE 6 B, 10 E). Terminal part of proboscis with four hook-shaped jaws arranged in a cross and accessory ailerons with deeply incised base ( Fig. 6 View FIGURE 6 A, C).

First two pairs of parapodia uniramous; following parapodia biramous ( Fig. 6 View FIGURE 6 D–K). Two slender triangular to digitiform prechaetal lobes; neuropodial lobe usually slightly longer and wider than notopodial lobe; both lobes becoming slightly thinner in posterior parapodia; in last parapodia notopodial lobe distinctly shorter than neuropodial one. Two shorter, rounded postchaetal lobes. Dorsal cirri from 3 rd parapodium, conical to oval; inserted - most clearly in anterior part of body - on body wall far above parapodial base. Ventral cirri slender triangular to digitiform, about as long as postchaetal lobes; in posterior parapodia slender and elongated; in last parapodia about as long as neuropodial prechaetal lobe; situated medio-ventrally on parapodia. Branchiae absent.

Noto- and neuropodia each with a single acicula ( Fig. 6 View FIGURE 6 D–K). Notochaetae capillaries. Neurochaetae compound spinigers with blades of different lengths.

Pygidium with dorsal anus and terminal pair of slender, elongated cirri.

Distribution. Lizard Island Group, North Direction Island, Yonge Reef; 0.5– 40 m.