Emydosauri.

Batrachia.

Pseudophidia.

NOTE.—The following species are peculiar to Ceylon; and the genera Aspidura, Cercaspis, and Haplocercus would appear to be similarly restricted. Trimesurus Ceylonensis, T. nigro-marginatus; Megæra Trigonocephala; Trigonocephalus hypnalis; Daboia elegans; Cylindrophis maculata; Aspidura brachyorrhos; Haplocercus Ceylonensis; Oligodon sublineatus; Cynophis Helena; Cyclophis calamaria; Dipsadomorphus Ceylonensis; Cercaspis carinata; Ixalus variabilis, I. Leucorhinus, I. poecilopleurus; Polypedates microtympanum, P. eques.