Dr. Hiroshi Senou, Japan
Info
We would like to express our sincere thanks to Dr. Hiroshi Senou, Kanagawa Prefectural Museum of Natural History, who provided the first photo of Vanderhorstia hiramatsui to reeflex.net.
Vanderhorstia hiramatsui was described on the basis of 2 specimens that came from the southwestern coast of Shikoku, Japan,
Dr. Senou reported that this species was first described as "Vanderhorstia sp. 5", which was found off the Izu Islands (off the Pacific coast of Honshu) and Kashiwa-jima Island
(off the southwest coast of Shikoku) were discovered.
Later the species was renamed to Vanderhorstia hiramatsui, in honor of W. Hiramatsu, who collected the type specimens of this species.
Vanderhorstia hiramatsui is easily distinguished from the other members of the Vanderhorstia "group" because this species has 12 segmented rays of the second dorsal fin (as opposed to almost always 11 in the other species (12 segmented rays have only been found in a single specimen of Vanderhorstia puncticeps).
Based on the underwater photo in Dr. Hiroshi Senou, the ground color of head and body is pale gray, somewhat blue colored, darker dorsally, the dorsal surface of head and dorsum of head and body is light green colored.
Short information:
Clearly visible are 5 vertically running dark brown bars on head and body:
- first bar (darkest and most fully developed) from the nape of the neck downward to the ventral part of the operculum
- second bar from posterior part of first dorsal fin attachment downward to abdomen
- third bar from anterior part of second dorsal fin attachment (between fourth and seventh rays) downward to just above anterior part of anal fin attachment
- fourth beam on the anterior part of the caudal fin peduncle
- and fifth and rearmost beam at caudal fin base;
Pupil narrowly outlined in yellow; iris dark bronze to black dorsally, ventrally yellow to yellowish gray;
Cheek and body dotted with tiny yellow spots, spots forming irregular longitudinal lines on middle portion of tail;
first dorsal fin translucent, somewhat yellowish gray or blue in color, dotted with tiny yellow spots
second dorsal fin slightly translucent, somewhat blue colored, dotted with yellow spots (slightly larger than those of first dorsal fin),with a yellow submarginal line; caudal fin translucent, slightly blue colored, with yellow spots and lines on dorsal and venal venal parts;
pectoral fin largely translucent, pelvic fin pale blue with yellow lines
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
Vanderhorstia hiramatsui was described on the basis of 2 specimens that came from the southwestern coast of Shikoku, Japan,
Dr. Senou reported that this species was first described as "Vanderhorstia sp. 5", which was found off the Izu Islands (off the Pacific coast of Honshu) and Kashiwa-jima Island
(off the southwest coast of Shikoku) were discovered.
Later the species was renamed to Vanderhorstia hiramatsui, in honor of W. Hiramatsu, who collected the type specimens of this species.
Vanderhorstia hiramatsui is easily distinguished from the other members of the Vanderhorstia "group" because this species has 12 segmented rays of the second dorsal fin (as opposed to almost always 11 in the other species (12 segmented rays have only been found in a single specimen of Vanderhorstia puncticeps).
Based on the underwater photo in Dr. Hiroshi Senou, the ground color of head and body is pale gray, somewhat blue colored, darker dorsally, the dorsal surface of head and dorsum of head and body is light green colored.
Short information:
Clearly visible are 5 vertically running dark brown bars on head and body:
- first bar (darkest and most fully developed) from the nape of the neck downward to the ventral part of the operculum
- second bar from posterior part of first dorsal fin attachment downward to abdomen
- third bar from anterior part of second dorsal fin attachment (between fourth and seventh rays) downward to just above anterior part of anal fin attachment
- fourth beam on the anterior part of the caudal fin peduncle
- and fifth and rearmost beam at caudal fin base;
Pupil narrowly outlined in yellow; iris dark bronze to black dorsally, ventrally yellow to yellowish gray;
Cheek and body dotted with tiny yellow spots, spots forming irregular longitudinal lines on middle portion of tail;
first dorsal fin translucent, somewhat yellowish gray or blue in color, dotted with tiny yellow spots
second dorsal fin slightly translucent, somewhat blue colored, dotted with yellow spots (slightly larger than those of first dorsal fin),with a yellow submarginal line; caudal fin translucent, slightly blue colored, with yellow spots and lines on dorsal and venal venal parts;
pectoral fin largely translucent, pelvic fin pale blue with yellow lines
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
