Calotes Cuvier 1817

Key to Sri Lankan species of genus Calotes

1. Shoulder pit present.................................................................................... 2

- Shoulder pit absent.......................................................................... C. versicolor

2. Row of well-developed, compressed spines above tympanum................................................... 3

- Well separated, rudimentary or prominent spines above the tympanum.......................................... 4

3. Ventral scales larger than dorsal scales........................................................... C. nigrilabris Ventral scales smaller than dorsal scales............................................................. C. calotes

4. Well separated spines prominent and developed.............................................................. 5 Well separated spines rudimentary and tubercle like.......................................................... 7

5. Lateral scales pointing backwards, and downwards........................................................... 6

- Lateral scales pointing backwards, and straight................................................... C. ceylonensis

6. Scales on ventral surface of thigh smooth........................................................... C. desilvai Scales on ventral surface of thigh keeled............................................................ C. liolepis

7. Abdominal scales mucronate, pectoral scales enlarged.............................................. C. liocephalus

- Abdominal scales acuminate, pectoral scales not enlarged................................... C. pethiyagodai sp. nov.