Nagaland lies between 25 degree 6’-27 degree 4’ and between 93 degree 20’-95 degree 15’. It is hilly and mountainous with deep gorges and steep slopes bordering narrow valleys and has a geographical area of 16,579,00 ha. The state consists of a narrow strip of hilly area running from the northeast to the southwest, which is located in the northern extension of the Arakan Yoma ranges of Myammar.
Studies on the Fish Fauna of the state have been undertaken by Hora (1921, 21a, 36); Hora and Mukherjee (1935); Malhotra and Suri (1969); Sen, (1985); Talwar and Jhingran (1991); Nath and Dey (1997); Kosygin and Viswanath (1998); Jayaram (1999); Menon (1999); Sen (2003) and Karmarkar and Das (2005). As per literature 125 species of fish have so far been reported from the state. The present study has enhanced knowledge of this group and a total of 140 species, including 15 new records, have been reported herein. All the reported and recorded species have been incorporated to get an overall picture of the fish resources of the state.
Apart from Chanda’s (1994, 2002) comprehensive work on the amphibians, there is very little information on the amphibian fauna of Nagaland (Ao,et al., 2003; Kiyasetuo and Khare, 1986). The present paper deals with 43 species of amphibians.
Located n the ‘Biodiversity hot spot’ region Nagaland is very rich in herpetofauna. However, the state needs yet to be thoroughly explored to assess its herpetological resources. Ao et al. (2004) reported 41 species of reptiles from Nagaland with 19 new records for the state. Subsequently, Mathew (2005) added two more species. Fauna of Nagaland (2006) reported 62 species of reptiles. The present study reports 74 species of reptiles.
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