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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.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce; saumâtre benthopélagique; profondeur 1 - ? m. Tropical
Asia: Soc Trang and Tra Vinh Provinces, Vietnam.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 24.5 cm SL mâle / non sexé; (Ref. 90869)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 7 - 9; Rayons mous anaux: 24 - 27; Vertèbres: 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).
Body shape (shape guide): elongated.
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).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
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).
Niveau trophique (Réf.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (20 of 100).
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