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..
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
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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)
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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).
