58 



C. ALBiVENTER, Gray. 



Ventrals 160-166, sube. 16. Labials 5. First pair lower 

 labials not in contact as usual. Brown, with white (red ?) 

 stripes and belly. 

 Penang. 



C. NIGRO-ALBA, GtllT. 



Ventrals 147-166, subc. 25-30. Labials 5. Upper parts 

 blacV:, belly white. 

 Penang. 



C. LEUCOCEPHALA, D. and B. 



Ventrals 136, subc. 37. Similar, but head white. 



C. CATENATA, Blyth. 



MACROCALAMUS, Giinther. 

 Nostril between the nasal and the first labial. Loreal 

 none> merged in the frontal ; 1 preocular, 1 postocular ; 

 only one paw of frontah ; 8 labials. Scales 13, smooth. 

 Anal entire, subcaudals double. 



M. LATERALIS, Gthr. 



Ventrals 118, subc. 20. Brown; lateral, dark, white-dotted 

 line. 



A solitary museum specimen. 



OXYCALAMUS, Giinther. 

 Head narrow, pointed. Two pairs of frontals ; loreal 

 merged in postfrontal ; 1 preocular, 1 postocular ; 5 labials. 

 Scales 15, smooth ; subcaudals double. 



0. LONGiCEPS, Cantor. 

 Ventrals 131, subc. 26. Uniform brownish black. 

 Penang. A solitary museum specimen. 



GEOPHIS, WagUr. 

 Two pai/rs of frontals, nostril between two nasals ; 1 or 2 

 postoculars ; preocular and loreal confluent. Scales 13-17, 

 smooth, anal entire, subcaudals double. 



