分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
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
生态学
海洋 居于水底的; 深度上下限 12 - 26 m (Ref. 56733). 热带
Western Central Pacific: Palau.
中西太平洋: 帛琉。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 2.1 cm SL 雄鱼/尚未辨别雌雄; (Ref. 56733); 2.1 cm SL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 7; 背的软条 (总数) : 11; 臀棘: 1; 臀鳍软条: 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).
鉴别: 与它的同类有 15-16个胸鳍鳍条区分了;(vs.18) 头部的 lateralis 孔 P 不存在;(vs. 存在的) 尾柄的头部，后颈，腹面腹部与背部中线裸露的;(vs. 覆有鳞片的) 而且尾梗有一个大又黑色的斑块 (vs. 没有).(参考文献 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).
小又沙子-潜水的鰕虎; 居住于急下降有洞穴与岩架，淤泥的沙架与斜坡, 藉由水息虫, 海扇与多种坚硬的珊瑚与一些 Halimeda.(参考文献 56733)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
中西太平洋: 帛琉。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
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特别资料
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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).
营养阶层 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
