Teleostei (teleosts) >
Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); herringi: Named for Peter J. Herring who was of great help to the authors by collecting and preserving Monognathus material on board the "Discovery".
Eponymy: Dr Peter John Herring is an oceanographer and deep-sea biologist, whose bachelor’s degree and doctorate were both awarded by Cambridge. [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 3000 - 5400 m (Ref. 34506). Deep-water
Northeast Atlantic.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm TL male/unsexed; (Ref. 34506)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 78; Anal soft rays: 58. M. herringi differs from the other species of the genus by the following combination of characters: head long with elongate, pointed snout, skull length 6.4% TL, rostral fang strongly hooked with distal part in a nearly right angle to dorsal profile of skull, anal fin origin below myomere number 28, and no lateral, subdermal spots of pigmentation.
Body shape (shape guide): eel-like.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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