250 SQT7A3UTA. 



Section COLUBRIFOPMES 1 , 



Family COLUBRIDiE. 



Genus PTYAS, Fifczinger 2 . 

 Syn. Coryphodon, Dumeril & Bibron 3 . 



IJtgag mucoausl (Linn. 4 ). 



Syn. Coluber mucosus, Linn. 5 



Coryphodon blumenbachi, Dumeril & Bibron e . 



Hab. India. 



R. 737. A trunk vertebra, provisionally referred to this form ; from 

 the Pleistocene of the Billa-Surgam caves, Karnul dis- 

 trict, Madras. A similar specimen (fig. 53) is described 

 and figured by the writer in the ' Palaeontologia Indica ' 

 (Mem. Geol. Surv. Ind.), ser. 10, vol. iv. p. 56, fig. 13. 



Presented by the Director of the 

 Geological Survey of India, 1886. 



Fig. 53. 



B 



Ptyas mucosus (?). — Posterior (A) and haemal (B) aspects of a trunk vertebra ; 

 from the Pleistocene of Madras. \. (From the ' Palgaontologia Indica.') 



Genus PILEMOPHIS, Pochebrune \ 



Allied to Tropidonotus, but distinguished by the more elongated 

 costal processes and the axe-shaped neural spine. There is a small 

 bourelet behind the zygosphene. The right to generic distinction 

 may be doubtful. 



1 The palseontological characters of the Ophidia being not yet worked out, in 

 many instances no diagnosis of the groups is given. 



2 Syst. Eeptilium, p. 26 (1843). 



3 Erp<±tologie G-enerale, vol. vii. pt. 1, p. 180 (1854). — Preoccupied. 



4 Syst. Nat. ed. 12, vol. i. p. 388 (1766).— Coluber. 



5 Loc. cit. a Op. cit. p. 184. 



7 Nouv. Archiv. d. Museum, ser. 2, vol. iii. p. 282 (1880).— Amended from 

 Pylmophis. 



