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Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); smithi: Named for Kenneth Smith, chief scientist for the cruise during which the material was caught.
Eponymy: Dr Kenneth L Smith Jr. [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batipelagico; distribuzione batimetrica 4201 - 5800 m (Ref. 34506). Deep-water; 31°N - , 159°W -
North Pacific: Central North Pacific gyre. High Seas only.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 7.2 cm TL maschio/sesso non determinato; (Ref. 34506)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 75 - 102; Raggi anali molli: 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).
Body shape (shape guide): eel-like.
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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia 13(4):141-198. (Ref. 34506)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Livello trofico (Fonte Biblio. 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |