Monognathus isaacsi Raju, 1974
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Family:  Monognathidae (Onejaws)
Max. size:  5.6 cm TL (male/unsexed)
Environment:  bathypelagic; marine; depth range 0 - 950 m
Distribution:  Northwest Pacific.
Diagnosis:  Dorsal soft rays (total): 80-80; Anal soft rays: 52-52. M. isaacsi differs from all other species of the genus by the following combination of characters: head long with elongate snout and almost straight jaw, skull length 7.0% TL, rostral fang strongly hooked with distal part in a nearly right angle to dorsal profile of skull, anterior dorsal fin ray above myomere number 13, jaw with 4 teeth, max depth of body 9.7% TL, and skin uniformly brown (Ref. 34506).
IUCN Red List Status: Data deficient (DD); Date assessed: 13 August 2019 Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Sa-a, Pascualita - 04.07.00

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