| 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). |
| Biology: |
|
| IUCN Red List Status: |
Data deficient (DD); Date assessed: 13 August 2019 Ref. (130435)
|
| Threat to humans: |
harmless |
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