Barbatula
Creators: name: Chen, Hao
name: Zhang, Hui
name: Chen, Yongxia
name: Freyhof, Jörg
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Cypriniformes
Nemacheilidae
Barbatula

description: Key to species of Barbatula in north-eastern China
1a. Anterior and posterior nostril widely spaced; lower lip with lateral expansion...................................... 2
1b. Anterior and posterior nostril closely set; lower lip without lateral expansion...................................... 8
2a. 6½ branched dorsal-fin rays; pelvic-fin origin in front of vertical through dorsal-fin origin................ B. potaninorum
2b. 7½ branched dorsal-fin rays; pelvic-fin origin below or behind vertical through dorsal-fin origin....................... 3
3a. Scales restricted to flank and back behind dorsal-fin origin..................................................... 4
3b. Scales present on complete flank and back, scales often isolated from each other and deeply embedded.................. 6
4a. Dorsal profile convex; scales restricted to caudal peduncle.......................................... B. pechiliensis
4b. Dorsal profile slightly convex; scales present on flank and back behind dorsal-fin origin............................. 5
5a. Snout blunt; pelvic-fin origin situated below the vertical through the dorsal-fin origin; median incision in upper lip longer than 50% of width of upper lip......................................................................... B. gibba
5b. Snout pointed; pelvic-fin origin situated behind the vertical through the dorsal-fin origin; median incision in upper lip less than 20% of width of upper lip................................................................... B. zhangwuensis
6a. Snout length equal to postorbital head length; dorsal profile convex.......................................... B. toni
6b. Snout length shorter than postorbital head length; dorsal profile slightly convex.................................... 7
7a. Scales present on back anterior to dorsal-fin origin; mental lobe without expansion......................... B. kirinensis
7b. Scales absent on back anterior to dorsal-fin origin; mental lobe with blade-shaped expansion.............. B. liaoyangensis
8a. Scales restricted to flank and back behind last dorsal-fin ray............................................... B. nuda
8b. Scales present from flank anterior to dorsal-fin origin to caudal peduncle, scales often isolated and embedded............ 9
9a. Median incision in upper lip less than 30% of width of upper lip; snout length equal to postorbital head length; pelvic-fin origin situated below the vertical through the dorsal-fin origin........................................... B. linjiangensis
9b. Median incision in upper lip longer than 40% of width of upper lip; snout length shorter than postorbital head length; pelvic-fin origin situated in front of the vertical through the dorsal-fin origin...................................... B. emuensis
description: Published as part of Chen, Hao, Zhang, Hui, Chen, Yongxia & Freyhof, Jörg, 2019, A review of the Barbatula loaches (Teleostei: Nemacheilidae) from north-eastern China, with the description of four new species, pp. 1-36 in Zootaxa 4565 (1) on page 6, DOI: 10.11646/zootaxa.4565.1.1, http://zenodo.org/record/2589489