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Cypriniformes (Carps) >
Psilorhynchidae (Mountain carps)
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335); brachyrhynchus: From the Greek words brachys (βραχυς), short, and rhynchos (ρυγχος), snout, in reference to the short snout of this species. An adjective.
Issue
Psilorhynchus balitora illustrated by Mukerji 1933 (plate 1,2-4) is tentatively considered conspecific with Psilorhynchus brachyrhynchus, until more materials become available.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar bentopelagis. Tropical
Asia: upper Ayeyarwaddy River drainage in northern Myanmar.
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL jantan/; (Ref. 85329)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 12; Sirip dubur lunak: 8; vertebrata, bertulang belakang: 35. Distinguished from other species of the genus by the following combination of characters: short snout (snout length 43-48% HL); principal rays in the upper caudal-fin lobe 10; absence of a dark irregular vertical bar across the distal edge of the caudal fin; absence of a broad swath of melanophores across the anterior half of the dorsal fin; presence of a large dark blotch at the base of each caudal fin lobe; and presence of an irregular vertical bar across the center of the caudal fin. Can be further diagnosed from all congeners by the following combination of characters: 2 branchiostegal rays; ventral surface between paired fins with triangular scale-less patch; presence of a large postepiphysial fontanelle; branched dorsal-fin rays 9; unbranched pectoral-fin rays 5; caudal-fin rays 10+9; lateral-line scales 32-34; lateral sides of body marked with 5-7 indistinct round to squarish dark blotches, arranged in a longitudinal row; caudal fin with a dark, irregular vertical bar across its center (Ref. 85329).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Conway, K.W. and R. Britz, 2010. Three new species of Psilorhynchus from the Ayeyarwaddy River drainage, Myanmar (Teleostei: Psilorhynchidae). Zootaxa 2616:31-47. (Ref. 85329)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00183 - 0.00952), b=3.16 (2.95 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
