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> Gobiiformes (Gobies) > Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Ptereleotris:Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref. 45335). More on authors: Jordan & Hubbs.
Indo-Pacific: Red Sea and East Africa (Ref. 2798) to the Line and Society islands, north to the Ryukyu and Ogasawara islands, south to New South Wales, Lord Howe Island, and Rapa.
ขนาด / น้ำหนัก / อายุ
วัยเจริญพันธุ์: Lm? range ? - ? cm Max length : 14.0 cm TL เพศผู้/กระเทย; (Ref. 9710)
เงี่ยงครีบหลัง (รวม) : 7; ก้านครีบอ่อนที่หาง (รวม) : 23 - 26; เงี่ยงครีบก้น: 1; ก้านครีบอ่อนที่ก้น: 23 - 26; สัตว์มีกระดูกสันหลัง: 26. Light bluish gray in life, shading posteriorly to black; snout blackish; operculum with iridescent blue markings. Chin with a low fleshy protuberance, narrowing posteriorly to a low longitudinal fold. Caudal fin lobes blackish to dark reddish, broad centro-posterior region of fin whitish to yellowish; 1st dorsal fin dull orangish; 2nd dorsal and anal fins largely blackish; pectoral base with an orange to orange-red bar edged in blue. Juveniles with an oval black spot larger than eye at lower base of caudal fin. Body shape (shape guide): elongated; Cross section: compressed.
Adults occur in outer reef slopes, also inhabits lagoons and bays. Usually in pairs as adults and in small aggregations as juveniles, Ref. 48637. Monogamous (Ref. 52884). They feed on zooplankton while hovering 1 to 2 m above the bottom. They swim away from danger rather than retreat to its burrow.
Randall, J.E. and D.F. Hoese, 1985. Revision of the Indo-Pacific dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pac. Fish. (7):36 p. (Ref. 528)
สถานะบัญชีแดงของ IUCN (Ref. 130435: Version 2025-2 (Global))
อุณหภูมิที่ต้องการ (อ้างอิง 123201): 25.8 - 29.3, mean 28.5 °C (based on 2808 cells).
ดัชนีความหลากหลายทางวิวัฒนาการ (อ้างอิง 82804): PD50 = 0.5000 [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).
ระดับชั้นอาหาร (อ้างอิง 69278): 3.4 ±0.45 se; based on food items.
ความเสี่ยงต่อการตกปลา (Ref. 59153): Low vulnerability (10 of 100). 🛈
