Monognathus bertini

Monognathus bertini Bertelsen & Nielsen, 1987

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Saccopharyngiformes (Swallowers and gulpers) > Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); bertini: Named for Leon Bertin in recognition of his pioneer contributions to the systematics of this family.
Eponymy: Dr Léon Bertin (1896–1954) was a French zoologist and ichthyologist at the Muséum National d’Histoire Naturelle, Paris and a noted scientific illustator. [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathypelagic. Deep-water

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Northeast and Southeast Atlantic. Also known from the Southwest Pacific.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.3 cm TL male/unsexed; (Ref. 34506)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 91 - 98; Anal soft rays: 43 - 58. M. bertini differs from all other species of the genus by the great distance between anal fin origin and anus (13-19 myomeres). It is further distinguished by the following combination of characters: head short, snout relatively long, skull length 3.6-4.9% TL, rostral fang with dorsal profile slightly convex forming an almost straight line with frontal part of skull, dorsal fin origin above myomere number 5-7, pectoral fin 5.3-10.5% TL and no lateral, subdermal spots of pigmentation (Ref. 34506).
Body shape (shape guide): eel-like.

Biology     Glossary (e.g. epibenthic)

All specimens were caught in the water column far above the bottom (Ref. 34506).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia 13(4):141-198. (Ref. 34506)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





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FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |