分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Blenniiformes (Blennies)
鱸形目 (Blennies) >
Dactyloscopidae (Sand stargazers)
指鰧科 (Sand stargazers)
Etymology: Gillellus: Theodore Nicolas Gill (1837-1914) researcher of abyssal fishes and systematics (Ref. 45335); jacksoni: Named after Felix N. Jackson, Museum Technician (GCRL), in partial recognition for his years of competent and willing performance of myriad ichthyological chores.
Eponymy: Felix N Jackson was a museum technician at the Gulf Coast Research Laboratory Museum, Mississippi. He was honoured “…in partial recognition for his years of competent and willing performance of myriad ichthyological chores.” (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
海洋 居於水底的; 深度上下限 0 - 17 m (Ref. 27742). 熱帶
Western Central Atlantic: Anguilla, St. Barthélemy Island, Union Island, and Aruba.
中西大西洋: 安圭拉，聖 Barthelemy 島，聯盟島與阿盧巴。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 2.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 27742)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 17 - 20; 臀棘: 2; 臀鰭軟條: 28 - 30. Common amongst Dactyloscopidae: Small, elongate fishes. Head usually broad and deep, body tapering and compressed behind. Eyes on top of head, often protrusible; mouth moderate to large, oblique to vertical; jaw teeth minute, in 2 or more series; no teeth on roof of mouth (vomer and palatines). Opercular opening large, gill membrane free from isthmus; opercles membranous, large, usually overlapping on underside of head, typically fringed above with 2 to 24 fleshy fimbriae. Dorsal fin continuous, with an isolated or semi-isolated anterior finlet, or with 1 to 5 separate anterior rays; dorsal-fin spines 7 to 23; anal-fin spines 2; dorsal and anal fins free or united to caudal fin by fragile membranes; pectoral fins broad-based, usually enlarged in mature males; caudal-fin rays simple or branched; pelvic fins under throat (insertion anterior to pectoral-fin base), with 1 spine and 3 thickened segmented rays; all other rays simple. Head and venter naked, body elsewhere with large cycloid scales (smooth to touch); lateral line high anteriorly, deflecting ventrally behind pectoral fin to continue along middle of side to caudal-fin base where terminal lateral-line scale bears ventrally directed canal. Body coloration, variably pale to strongly pigmented with white, brown, or reddish; some forms with characteristic saddle-like bars crossing back; others plain, mottled, or with indications of lateral stripes. Species distinguished by: dorsal-fin origin on nape; with an isolated or semi-isolated anterior finlet. Segmented caudal-fin rays usually 10. First preopercular canal not branched, with a single distal pore. Upper lip without fimbriae; lower lip fimbriae 2 to 4. Straight lateral-line scales 18 or 19; arched lateral-line scales 22 to 33 (Ref. 52855).
Body shape (shape guide): elongated.
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
中西大西洋: 安圭拉，聖 Barthelemy 島，聯盟島與阿盧巴。
Dawson, C.E., 1982. Atlantic sand stargazers (Pisces: Dactyloscopidae), with description of one new genus and seven new species. Bull. Mar. Sci. 32(1):14-85. (Ref. 27742)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 18 October 2007
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (參考文獻
123201): 27.3 - 28.5, mean 27.9 °C (based on 141 cells).
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5010 [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).
營養階層 (參考文獻
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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