June 13, 2011
Many congratulations to Mark and Rahul for this one!
Fishes currently assigned to Oreichthys cosuatis from the Western Ghats are shown to belong to a closely-related group
of three valid species: Puntius coorgensis, which is raised from synonymy, and two new species, O. duospilus and O. incognito.
Oreichthys coorgensis can be distinguished from its congeners by a combination of characters that include
22–23+1–2 scales in the longitudinal series with 5–8 pored scales; ½3/1/2½ scales in the transverse row; 6–7 predorsal
scales and usually a faint blackish spot on the caudal-fin base. Oreichthys duospilus, sp. nov., can be distinguished by
possessing an almost complete lateral line with 11–21 pored scales and two black spots: one on the dorsal fin and the other
on the anal fin. Oreichthys incognito, sp. nov., can be distinguished by a lateral line with 5 pored scales; ½3/1/1½ scales
in the transverse row; 8 predorsal scales and a vertical black bar on the dorsal fin.
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