1. MATERIALS AND METHODS

Specimens were collected using a 1m x 2m net, dragging at the bottom of the streams and preserved in 6% formaldehyde, and were deposited at the Southern Regional Station, ZSI and CES, IISc. These specimens were classified as per Jayaram (1999) and compared using Menon (1987); Kottelat (1990); Talwar and Jhingran (1991); Kottelat (2004); Vishwanath and Shanta (2004); Vishwanath and Nebeshwar (2004); Vishwanath and Sharma (2005). Menon (1987); Kottelat (1990); and Jayaram (2002) were referred for terminologies and Kottelat (1990) for counts and measurements. Morphological measurements were done with a slide caliper (0.l mm precision). Thirty-one (26 nophometric and 5 meristic) characters of new species and congeners were analysed using Principal Component Analysis (STATISTICA, 1999).