Classificazione / Nomi
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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 climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Subtropical
Asia: China.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 7.3 cm SL maschio/sesso non determinato; (Ref. 120400)
Breve descrizione
Chiavi di identificazione | 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 vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00646 (0.00283 - 0.01475), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
2.7 ±0.2 se; based on size and trophs of closest relatives |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |