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Atheriniformes (Silversides) >
Phallostethidae (Priapiumfishes)
Etymology: Phallostethus: Greek, phallos = penis + Greek, stetho, stethion = brest; literal = to prick a little breast (Ref. 45335); cuulong: The specific name is the Vietnamese name of the Mekong delta (Cưu Long), where the
type series of the new species was collected. A noun in apposition, means nine dragons, in reference to nine distributaries of the Mekong basin in Vietnam..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy; Mức độ sâu 1 - ? m. Tropical
Asia: Soc Trang and Tra Vinh Provinces, Vietnam.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 24.5 cm SL con đực/không giới tính; (Ref. 90869)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng) : 7 - 9; Tia mềm vây hậu môn: 24 - 27; Động vật có xương sống: 37 - 40. Differs from all other species of the genus Phallostethus in having the following characters: second ctenactinium with seven serrae in adult males; pectoral fin with 11-13 rays ; 11-14+25-26=37-40 vertebrae; approximately 5-19 teeth on paradentary. Males are dextral based on six specimens; 25-26 caudal vertebrae, sexual dimorphism is also found in the number of precaudal vertebrae, 13-14 in males and 11-12 in females (Ref. 90869).
Occurs in shallow waters (<1.2 m depth) around banks of slow-flowing turbid canals and rivers with soft muddy bottoms. Usually solitary. Sympatric with aplocheilid Aplocheilus panchax (Ref. 90869).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Shibukawa, K., D.D. Tran and L.X. Tran, 2012. Phallostethus cuulong, a new species of priapiumfish (Actinopterygii: Atheriniformes: Phallostethidae) from the Vietnamese Mekong. Zootaxa 3363:45-51. (Ref. 90869)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [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).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
