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Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Glyptosterninae
Etymology: Pseudexostoma: Greek, pseudes = false + Greek, exo = outside + Greek, stoma = mouth (Ref. 45335).
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce demersal. Temperate
Asia: known only from the middle and lower Nujiang (= Salween) basin, China.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 15.3 cm SL macho/indeterminado; (Ref. 57980)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Raios dorsais moles (total) : 5; Raios anais moles: 3 - 4. This species is distinguished from Pseudexostoma yunnanensis by the following characters: posterior margin of lower lip with 3 notches, depth of middle one shallower than lateral ones (vs. same depth), length of 2 smaller median lobes of lower lip longer than lateral lobes (vs. the same length); pelvic fin i, 3-4 (vs. i, 5); base of adipose fin longer, 36.1-46.0% SL (vs. 28.8-39.8); caudal peduncle more slender, depth 4.2-6.9% SL, 20-33.7% in length of caudal peduncle (vs. 6.4-8.3 and 32.6-42.7); premaxillary tooth band with 16-18 teeth (vs. 18-22), it is divided into 2 and are isolated (vs. connected partially). The species differs from P. longipterus in having a shorter pectoral fin 24.9-29.8% SL (vs. 30.1-31.3), pelvic fin 16.1-22.9% SL (23.1-24.3), and caudal fin 13.6-17.9% SL (vs. 18-19.6); smaller eyes and a narrower interorbital width, eye diameter 5.8-7.8% HL (vs. 8.2-10), interorbital width 19.7-24.7% HL (vs. 25.5-30.8) (Ref. 57980).
Body shape (shape guide): elongated; Cross section: compressed.
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Zhou, W., Y. Yang, X. Li and M.-H. Li, 2007. Review of the catfish genus Pseudexostoma (Siluriformes: Sisoridae) with description of a new species from the Upper Salween (Nujiang) Basin of China. Raffles Bull. Zool. 55 (1):147-155. (Ref. 57980)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00269 - 0.01352), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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