分類 / 名前
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Eviota: No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible; randalli: Named for John E. Randall; patronym in genitive case.
Eponymy: Dr John ‘Jack’ Ernest Randall Jr. [...] (Ref. 128868), visit book page.
More on author: Greenfield.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 関連する礁; 深さの範囲 3 - 17 m (Ref. 83326). Tropical
Pacific: Fiji, Tahiti and Samoa Islands; Palau specimens .incertae sedis.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 1.8 cm SL オス/雌雄の選別がない; (Ref. 83326); 1.7 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; 肛門の骨: 1; 臀鰭: 8. This species is distinct in having the following characters: D VI+I,8, A I,8; pectoral-fin rays branched, only starting with ray 10 (usually 11 or 12); cephalic sensory-pore system pattern I (complete); absence of fifth segmented pelvic-fin ray; 3-4 branches on fourth pelvic-fin ray, 3-7 segments between branches (usually 3-4); non-fimbriated genital papilla; slightly filamentous dorsal fin; 3 internal dark bars between anal-fin origin and caudal fin; lower half of pectoral-fin base with a distinct dark spot and anterior to the base is a white area (Ref. 83326). Dorsal to anal fin-ray formula 8/8.
Body shape (shape guide): fusiform / normal.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Greenfield, D.W., 2009. Eviota randalli, a new gobiid fish from Oceania. Proc. Calif. Acad. Sci. 60(20):683-687. (Ref. 83326)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
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インターネットの情報源
モデルに基づく推定値
好ましい温度 (参照
123201): 25 - 29.4, mean 28 °C (based on 1120 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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