Actinopterygii (ray-finned fishes) >
Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335).
Environment / Climate / Range
Ecology
Marine; bathypelagic; depth range 0 - 2100 m (Ref. 58018). Deep-water, preferred ?
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Central Pacific: known from the type locality, 12°07.1'-12°23.8'N, 148°35.1'-148°18.0'W (Ref. 46206).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.3 cm TL male/unsexed; (Ref. 34506)
Short description
Morphology | Morphometrics
Dorsal
soft rays
(total): 80;
Anal
soft rays: 54. M. jesse differs from all other species of the genus by the following combination of characters: head short, snout blunt, skull length 4.1% TL, rostral fang with dorsal profile slightly convex forming an almost straight line with frontal profile of skull, dorsal fin origin above myomere number 11, anal fin origin below dorsal fin ray number 29, myomeres 104 and jaw with 16 teeth. No lateral, subdermal pigmentation (Ref. 34506).
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. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
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Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 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), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.3 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref.
69278): .
Vulnerability (Ref.
59153): Low vulnerability (10 of 100) .