Pteroidichthys caussei Motomura & Kanade, 2015
Causse’s scorpionfish
Pteroidichthys caussei
photo by Motomura, H.

Family:  Scorpaenidae (Scorpionfishes or rockfishes), subfamily: Scorpaeninae
Max. size:  4.53 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 68 - 122 m
Distribution:  Pacific Ocean: New Caledonia and Marquesas Is.
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 6-6. This species is distinguished by the following characters: A II,6; dorsal-fin spines are rigid; relatively short snout, its length 12.3-17.2% (mean 15.1%) of SL, and is shorter than postorbital length; posterior margin of the maxilla reaching beyond vertical through middle of pupil; the distance between tips of lateral lacrimal and first suborbital spines is shorter than between tips of first and second suborbital spines; no supplemental preopercular spine; tentacles on supraocular and posterior lacrimal spines are well developed, their lengths greater than orbit diameter; trunk and fins with numerous tentacles; lateral lacrimal and suborbital spines poorly are developed, indistinct, usually tiny spines and often bony protuberances without pointed tips; without the distinct black blotch on soft-rayed portion of dorsal fin (Ref. 106976).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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