58 



C. ALBiVENTER, Gvay. 



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

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

 stripes and belly. 

 Penang. 



C. NIGRO-ALBA, Gthv. 



Ventrals 147-166, subc. 25-80. Labials 5. Upper parts 

 black, belly white. 

 Penang. 



C. LEUCOCEPHALA, D. and B. 



Ventrals 136, subc. 87. Similar, but head white. 



C. CATENATA, Blyth. 



MACROCALAMUS, Gilnther. 

 Nostril between the nasal and the first labial. Loreal 

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

 only one fair of frontals ; S lahicds. Scales 13, smooth. 

 Anal entire, subcaudals double. 



M. LATERALIS, Gthv. 



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

 line. 



A solitary museum specimen. 



OXYCALAMUS, Gilnther. 

 Head narroiu, iiointed. T%uo "pairs of frontals ; loreal 

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

 Scales 15, smooth ; subcaudals double. 



O. LONGICEPS, Cantor. 



Ventrals 131, subc. 26. Uniform brownish black. 

 Penang. A solitary museum specimen. 



GEOPHIS, Wagler. 

 Tvjo pairs of frontals, nostril between two nasals ; 1 or 2 

 postoculars ; preocular and loi^eal confluent. Scales 13-17, 

 smooth, anal entire, subcaudals double. 



