Data from: Devario in Bangladesh: species diversity, sibling species, and introgression within danionin cyprinids (Teleostei: Cyprinidae: Danioninae)

Four species of Devario are recorded from Bangladesh: D. aequipinnatus, D.
anomalus, D. coxi, new species, and D. devario. Devario aequipinnatus has
a wide distribution in northern India and Bangladesh. Devario coxi, from
southeastern Bangladesh near Cox's Bazar, differs from D.
aequipinnatus in mtDNA (COI, p-distance 1.8%), colouration, proportional
measurements, and meristics. The minor morphological differences and low
frequency of overlapping meristics suggest relatively recent separation of
D. coxi from other D. aequipinnatus. Devario anomalus occurs only in
southeastern Bangladesh and is here reported from localities in addition
to the type locality. It differs from the similar D. xyrops in adjacent
Myanmar by slender body shape and by 2.3% p-distance in the COI gene.
Specimens of D. anomalus from the Sangu River were found to have the
mitochondrial genome of D. aequipinnatus from Bangladesh, but agree with
other D. anomalus in the nuclear RAG1 gene. Devario devario has a wide
distribution on the Indian Peninsula and border regions; in Bangladesh it
is restricted in distribution to the Ganga, Brahmaputra, and Meghna
drainages. Reports of D. assamensis and D. malabaricus from Bangladesh are
misidentifications. Perilampus ostreographus M'Clelland, 1839, is
tentatively synonymized with D. aequipinnatus. Phylogenetic analysis of 14
species of striped devarios based on the COI gene results in a polytomy
with four unresolved clades. Devario deruptotalea from the Chindwin basin
is the sister group of D. aequipinnatus+D. coxi. Devario devario is the
sistergroup of D. xyrops+D. anomalus.