756 



JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXV. 



JheluxV, December 191/ 



F. WALL. Lt.-Col., i.m.s. 



No. XVII.— NOTE ON THE BREEDING OF THE RASP-SKINNED 

 WATER SNAKE CHERSYDRUS GRANULATUS, SCHNEIDER. 



I have lately received from Dr. J. R. Henderson an interesting speci- 

 men of Chersydrus killed on the 19th of August in the timber pond, Madras 

 Harbour (saltwater). 



On dissection it proved to be gravid, and contained twelve embryos in 

 an advanced stage of development. The mother was 48 inches in length, 

 the tail accounting for 5 inches. She was the usual colour of adults, being 

 an almost uniform dark umber. Any lighter markings have to be closely 

 sought for, and are then hardly visible. 



The embryos unfortunately were in a very sodden condition, and 

 broken. Four that were whole measured 12^, 13, 13tV and 13f inches 

 respectively. They could not be sexed as none showed the genitals 

 extruded. They were chiefly remarkable for their zebra-like appearance 



