分類 / Names
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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
生態学
海 関連する礁; 深さの範囲 8 - 18 m (Ref. 116128). Tropical
Western Pacific: Papua New Guinea.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 1.5 cm SL オス/雌雄の選別がない; (Ref. 116128); 1.6 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) : 8 - 11; 肛門の骨: 1; 臀鰭: 9 - 11; 脊つい: 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 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
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
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).
栄養段階 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
