Characiformes

Biology

Demography

Labeo

Population

Ecology

Cyprinidae

Range (aeronautics)

Fishery

Sociology

Barbel

Materials science

Fish <Actinopterygii>

Composite material

Zoology

Zootaxa

The taxonomy of the three native taxa assigned to the genus Labeo (L. dussumieri, L. fisheri and L. porcellus lankae) in Sri Lanka is reviewed. The population hitherto identified as L. dussumieri in Sri Lanka is shown to be a distinct species, here named L. heladiva. Labeo heladiva, new species, has a wide distribution in the low and mid-elevations of the island and is distinguished from its Indian congeners by the combination of having two pairs of barbels; 12–13 branched dorsal-fin rays; lateral line with 44–51 scales; ½8–½9+1+6–7 scales in transverse series; and 19–22 circumpeduncular scales. It differs from its closest relative, L. dussumieri, principally by having 44–51 vs. 50–60 lateral-line scales, 19–22 vs. 22–27 circumpeduncular scales, and by uncorrected pairwise genetic distances of 1.27–2.22% and 1.88–2.91% for the two mitochondrial genes COI and cytb, respectively. Labeo fisheri, which is endemic to the upper reaches of the Mahaweli River basin in the Knuckles mountain range and the central hills...

A review of the genus Labeo (Teleostei: Cyprinidae) in Sri Lanka 