分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Eponymy: Edwin Janss Jr (1915–1989) was a Californian real estate developer, Chairman of Janss Investment Corporation, and a recreational diver. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
海洋 礁区鱼类; 深度上下限 10 - 25 m (Ref. 87125). 熱帶
Eastern Central Pacific: Costa Rica , Panama and Mexico.
中太平洋東部: 哥斯大黎加與巴拿馬。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 3.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 11482)
背棘 (总数) : 6 - 7; 背的软条 (总数) : 9; 臀棘: 1; 臀鳍软条: 8. This species is distinguished by the following characters: fewer second dorsal and anal-fin rays than other species; a spotted head and body; distinctive head shape, when viewed dorsally, it is narrow and compressed anterior to the eyes, broadening posteriorly due to
the thick cheek muscles; males typically with a large mouth extending beyond the end
of the eye (Ref. 87125).
Body shape (shape guide): elongated.
Occurs in reefs and rock outcrops surrounded by sand (Ref. 11482). Minimum depth from Ref. 58018.
出现于礁，而且裸露的岩石被沙子包围了。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
中太平洋東部: 哥斯大黎加與巴拿馬。
Allen, G.R. and D.R. Robertson, 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
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Estimates based on models
Preferred temperature (参考文献
123201): 26.6 - 29.1, mean 28.2 °C (based on 129 cells).
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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