Monognathus bruuni Bertin, 1936

Family:  Monognathidae (Onejaws)
Max. size:  8 cm TL (male/unsexed)
Environment:  bathypelagic; marine; depth range 0 - 3000 m
Distribution:  Western Pacific: The only known specimen was caught in the South China Sea.
Diagnosis:  Dorsal soft rays (total): 72-72; Anal soft rays: 42-42. M. bruuni differs from all other species of the genus except M. jesperseni in having a glandular part of the dorsal fin. Is distinguished by the following combination of characters: head short, snout blunt, skull length 3.8% TL, rostral fang with dorsal profile slightly convex forming an almost straight line with frontal part of skull, dorsal fin origin above myomere number 13, and small pectoral fins (ca. 1% TL).
Biology:  Holotype was captured with a ringnet, at a depth of about 4000 m (Ref. 34506).
IUCN Red List Status: Data deficient (DD); Date assessed: 13 August 2019 Ref. (130435)
Threat to humans:  harmless


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