Monognathus smithi Bertelsen & Nielsen, 1987 |
Family: | Monognathidae (Onejaws) | |||
Max. size: | 7.2 cm TL (male/unsexed) | |||
Environment: | bathypelagic; marine; depth range 4201 - 5800 m | |||
Distribution: | North Pacific: Central North Pacific gyre. High Seas only. | |||
Diagnosis: | Dorsal soft rays (total): 75-102; Anal soft rays: 55-63. The available specimens of M. smithi differ from all other specimens of a similar total length (6.8-7.2) within the genus by the long skull 7.0-7.6% TL and long lower jaw 11.8-12.5% TL. Furthermore, it is distinguished by the following combination of characters: head long with elongate, pointed snout slightly upturned, rostral fang strongly hooked with distal part in a nearly right angle to dorsal profile of skull, preanal 36.0-37.5% TL, and at least 7 teeth in jaw (Ref. 34506). | |||
Biology: | The holotypes and paratypes of M. smithi were caught in the water column in a closing net at 4200 and 5200 m, with a sounding at 5800 m (Ref. 34506). | |||
IUCN Red List Status: | Data deficient (DD); Date assessed: 13 August 2019 Ref. (130435) | |||
Threat to humans: | harmless |