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Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); ozawai: Named for Takakazu Ozawa who allowed the authors to describe the only Japanese specimen of this rare genus.
Eponymy: Dr Takakazu Ozawa is a Japanese ichthyologist at the Faculty of Fisheries, Kagoshima University. [...] (Ref. 128868), visit book page.
More on authors: Bertelsen & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
экология
морской батипелагический. Deep-water
Northwest Pacific: Only known from the type locality south of the Ryukyu Islands.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm TL самец/пол неопределен; (Ref. 34506)
Краткое описание
определительные ключи | морфология | морфометрия
членистые (мягкие) лучи спинного плавника (общее число) : 96; членистые (мягкие) лучи анального плавника: 66. M. ozawai differs from the other species of the genus by the following combination of characters: head short, snout blunt and short, skull length 5.5% TL, rostral fang with dorsal profile slightly convex forming an almost straight line with frontal profile of skull, dorsal fin origin above myomere number 5, anal fin origin below dorsal fin ray number 40 and pectoral fin about 1% TL.
Pelagic, caught in an open ring trawl (Ref. 34506).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Bertelsen, E. and J.G. Nielsen, 1987. The deep sea eel family Monognathidae (Pisces, Anguilliformes). Steenstrupia 13(4):141-198. (Ref. 34506)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
Угроза для людей
Harmless
Использование человеком
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): 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): 3.1 ±0.30 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).