Chascanopsetta prognatha Norman, 1939
Chascanopsetta prognatha
photo by Shao, K.T.

Family:  Bothidae (Lefteye flounders)
Max. size: 
Environment:  bathydemersal; marine; depth range 494 - 550 m
Distribution:  Indo-Pacific: Maldives, Japan and the Ryukyu Trough.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 124-133; Anal spines: 0-0; Anal soft rays: 86-93; Vertebrae: 59-61. Similar to C. lugubris, but differs from it by lower jaw projecting well beyond the tip of the upper jaw, and the length of the lower, longer than head length. Mandibular membrane very thin, forming distinct gular pouch. Length of upper jaw about equal to head length (Ref. 559). Length of lower jaw on ocular side 22.7-26.5% SL, on blind side 22.2-26.9; depth of caudal peduncle 4.0-4.9% SL (Ref. 10737).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 11 November 2019 Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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