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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: microcephala: Name from Latin adjectives m'icro-' for small and 'cephala' meaning head, referring to its small head; as an adjective.
Eponymy: Mari Albert Johan Van Manen (1877–1943) was a Dutch ethnographer, theosophist and orientalist who made a specialty of the study of Tibet and its texts. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce demersal. Subtropical
Asia: China.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 7.3 cm SL macho/indeterminado; (Ref. 120400)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
This species is distinguished among the barred group in Vanmanenia by the following set of characters: lateral side of the body with 14-22 vermiculations, the widths smaller than the diameter of the eye (vs. 10-15 regular bars with widths equal to the diameter of the eye in V. tetraloba); dorsal side of head covered with a large black blotch (vs. several short dark brown vermiculations in V. striata, V. tetraloba); gill opening smaller, its upper angle level with the lower edge of the eye (vs. opening larger and its upper angle aligned with the middle point of the eye in V. crassicauda, V. serrilineata, V. striata, V. tetraloba); dorsal part of the body with 4-6 black saddles (vs. 7-9 in V. striata); patch of the caudal-fin base dissociated, not connected to the upper and lower margin of the caudal peduncle (vs. connected in V. tetraloba); head smaller, its depth 45.2-47.1% HL (vs. head larger, depth 48.1-60.0% HL in V. striata, V. tetraloba) (Ref. 120400).
Cross section: circular.
Inhabits rapids, torrents, and waterfalls. Feeds mainly on algae attached to rocks and on organic residues and small aquatic insects (Ref. 120400).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Li, X., W. Zhou and X.-J. Che, 2019. Loaches of Vanmanenia (Cypriniformes: Gastromyzontidae) from Yunnan, China with description of a new species. Zootaxa 4603(1):125-144. (Ref. 120400)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00285 - 0.01461), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 2.7 ±0.2 se; based on size and trophs of closest relatives
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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