Actinopterygii (ray-finned fishes) > Saccopharyngiformes
(Swallowers and gulpers) > Monognathidae
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".. More on author: Nielsen.
Environment / Climate / Range
Marine; bathypelagic; depth range 3000 - 5400 m (Ref. 34506). Deep-water, preferred ?
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.8 cm TL male/unsexed; (Ref. 34506)
Morphology | Morphometrics
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.
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. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .