Atagema papillosa (Risbec, 1928)

アタゲマ・パピロサ Atagema papillosa
Photographed by
bighit2000 Manabu Kakegawa
Location
Agung, Tulamben, Pulau Bali, Indonesia
Date
2017/11/07
Length
15mm
Depth
15.0m
Water temperature
28.0℃

MORPHOLOGY

Body oval, flattened, covered with a complex network of small ridges with two levels of organization. The largest ridges cover the entire body, leaving some depressions in between. Smaller ridges occur in the depressions dividing them into smaller fragments. Entire dorsal surface, except for the depressions, covered with caryophyllidia. Branchial sheath composed of three large lobes; gill composed of five tripinnate branchial leaves, arranged horizontally in the living animal. Rhinophoral sheaths elevated; rhinophores long, lamellated, with 16 lamellae. Body color opaque grey with scattered yellow spots; depressions with gray ridges dividing dark grey to black fragments. Gill leaves are the same color as the dorsum. Rhinophores greyish to yellowish cream.

DISTRIBUTION

Possibly a New Caledonia endemic

References