A karyotype study in two fish species belonging to Genus Neolissochilus found in Meghalaya, India

The karyomorphological study of two species Mahseer belonging to the genus Neolissochilus, namely Neolissochilus hexagonolepis and N. hexastichus were carried out. revealed basic chromosome number in both Masheer was observed be 100. However, karyotype formula varied among species. had a diploid 42 metacentric (m), 20 submetacentric (sm), 8 subtelocentric (st) 30 telocentric (t) karyotypic 32 22 4 (t). This finding removed taxonomic confusion due differences number, morphology chromosomes between fish helped distinctive unblemished identification from Meghalaya, though they have morphological similarity.