分類 / Names
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Gobiiformes (Gobies) >
Xenisthmidae (Collared wrigglers)
Etymology: Paraxenisthmus: Greek, para in the side of + Gree, xenos = strange + Greek, isthmos = narrow passage (Ref. 45335); cerberusi: Named for Cerberus, the three-headed dog guarding the gates of Hades; refers to the relatively toothy attributes of the genus, and to the black juveniles and red and black adults, colors often associated with the darkness and flames of Hell.
Eponymy: Cerberus was the three-headed dog who guarded the entrance to Hades in Greek mythology. [...] (Ref. 128868), visit book page.
More on authors: Winterbottom & Gill.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 12 - 26 m (Ref. 56733). Tropical
Western Central Pacific: Palau.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 2.1 cm SL オス/雌雄の選別がない; (Ref. 56733); 2.1 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 7; 背鰭 (合計) : 11; 肛門の骨: 1; 臀鰭: 10. Diagnosis: Distinguished from its congeners in having 15-16 pectoral fin-rays (vs. 18); cephalic lateralis pore P absent (vs. present); head, nape, ventral abdomen, and dorsal midline of caudal peduncle naked (vs. scaled); and caudal peduncle with a large, black blotch (vs. none) (Ref. 56733).
Small, sand-diving gobioids; inhabits drop-off with caves and ledges, silty sandy shelves and slopes, with hydroids, sea fans and a variety of hard corals and some Halimeda (Ref. 56733).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Winterbottom, R. and A. Gill, 2006. Paraxenisthmus cerberusi, a new species of xenisthmid fish from Palau (Percomorpha: Gobioidei). Copeia 2006(1):10-13. (Ref. 56733)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 27.2 - 29.1, mean 28 °C (based on 22 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).