author(s)
Sanjay Paunikar and Shital Panwar

abstract
The present study focuses on the identification of 25 fish specimens collected from one of the tributaries of river Ganga i.e., Song river in Dehradun, Uttarakhand during 2020. The 20 specimens of each fish were collected in different localities of Song river and twenty four morphometric measurements and eight meristic count parameter for each species. The five fishes were Rasbora daniconius, Devario devario, Nemacheilus botia, Pethia conchonius and Channa gachua. The total length and weight of Rasbora daniconius ranged from 7.6-5.5 cm and 5.1-1.8g; Devario devario fish species ranged from 7.6-5.5 cm and 6.9-1.9g; 6.9-5.1 cm and 4.4-1.2g (Nemacheilus botia), 5.4-4.4 cm and 3.6-1.5g (Pethia conchonius) and 9.1-7.5 cm and 8.1-4.8g (Channa gachua) respectively were recorded during the study period. 22/23 Morphometric characters were studied and their analysis of regression and correlation shows highly significant positive value (r > 0.90) in all parameters with respect to total length and head length. The meristic characters were counted to draw fin formula. The study of morphometric relationships and meristic characters are required for the taxonomic and phylogenetic studies.