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Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Yunnanilus: From Yunnan, city on southwest China; pachycephalus: From pachy (Greek) which means thick, wide; and cephalus (Greek) which means head; alluding to the large swollen head of some specimens.
More on authors: Kottelat & Chu.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Subtropical
Asia: stream Weizhangho at Yangliu, Yunnan, China.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 8.3 cm SL hane/ej könsbestämd; (Ref. 12040)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 12 - 13; Mjukstrålar i analfenan: 8. No lateral line; no head pores; 9 1/2 branched dorsal rays; 14 branched caudal rays; body depth 20-25% SL; dorsal head length 16-21% SL; color pattern usually consisting of large dark spots (Ref. 12040).
Body shape (shape guide): elongated.
Inhabits torrential waters under rocks.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Kottelat, M. and X.L. Chu, 1988. Revision of Yunnanilus with description of a miniature species flock and six new species from China (Cypriniformes: Homalopteridae). Environ. Biol. Fishes 23(1-2):65-93. (Ref. 12040)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.00724 (0.00347 - 0.01512), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |