分类 / Names
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Teleostei >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Grallenia: Named for Gerald R. Allen, (G+R+Allen+suffix '-ia'), in honor of his great contribution to our knowledge of the diversity of coral-reef fishes; dimorpha: Name from Latin 'dimorpha' meaning 'two shapes'; referring to the sexual dimorphism in relation to dorsal-fin shape; treated as a feminine singular adjective.
Eponymy: Dr Gerald Ray Allen (d: 1942) The genus was named to honour “…his great contribution to our knowledge of the diversity of coral-reef fishes.” (See Allen, GR) (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 礁区鱼类; 深度上下限 8 - 18 m (Ref. 116128).
分布
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Western Pacific: Papua New Guinea.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 1.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 116128); 1.6 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) : 8 - 11; 臀棘: 1; 臀鳍软条: 9 - 11; 脊椎骨: 27. This species is distinguished by the following characters: D VI + I,8-11 (usually 10); A I,9-11 (usually10); fully erect first dorsal fin of male differs from female, male fin rectangular with fifth spine longest and female fin triangular with first spine forming elongate filament; no pelvic frenum nor head pores; longitudinal scales 25-30, often continuous from posterior pectoral-fin base to caudal-fin base, but anterior half of body mainly scaleless; body depth at pelvic-fin origin 13.4-15.6% SL; colour of male in life translucent with a mid-lateral row of five widely separated and progressively shorter posteriorly, horizontal, orange-brown lines, each surrounded by yellowish hue and with a faint, narrow, vertical, brown line extending ventrally, forming overall T-shaped marking; dorsal fins with a pair of prominent stripes, the outermost relatively broad and yellow-orange, inner stripe situated just above fin base, narrower and orange-red with black margin; anal fin yellowish with distinctive black margin; caudal fin is yellowish with irregular translucent areas mainly on upper part of basal half; female similar, but fins translucent without both the distinctive stripes on dorsal fins and black margin on anal fin; series of five ovate, progressively smaller, brown blotches along lower side interspersed with brilliant white markings, beginning at pectoral-fin base, continuing to posterior caudal peduncle (Ref. 116128).
Lives on sandy substrate (Ref. 116128).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Allen, G.R. and M.V. Erdmann, 2017. Descriptions of five new species of marine gobies (Teleostei: Gobiidae) of the genus Grallenia) from the tropical western Pacific Ocean. J. Ocean Sci. Found. 27:20-47. (Ref. 116128)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [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 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref.
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).
