>, 39. — 1889.] ZOOLOGICAL TABLES. 



211 



2. — Maxillary teeth sub-equal. 19 A. calamaria ; 26 C. 



helena ; 34 C. granulatus. 



3. — As in a' 2 ; anterior mandibulary teeth longest. 27 D. 



pictus ; 28 D. caudolineatus. 



4. — Maxillary teeth equal ; anterior mandibulary teeth a 



little the longest. 10 to 14, A. brachyhorros. 



5. — As in a 1 ; anterior mandibulary teeth a little the 



longest. .17 H. nympha. 



= 30 Tropidonotus stolatus. 

 As in a, but the last maxillary tooth forms a distinct fang. 



1. — Maxillary teeth gradually increasing in length poster- 



iorly ; fang moderate, separate from the preceding 

 teeth by a distinct interval and enclosed in a separate 

 membranaceous pouch ; mandibulary and palatine 

 teeth all of about equal size. 30 T. stolatus ; 31 T. 

 asperrimus. 



2. — As in b 1 ; fang very large, separated from the pre- 



ceding teeth by a wide interval. 32 T. plumbicolor. 



= 3 Python molurus. 

 As in a, but there are also teeth on the inter-maxillaries. 



= 15 Lycodon aulicus. 



As in a, but the anterior maxillary teeth are enlarged 

 and fang-like, followed by a toothless space ; anterior 

 mandibulary teeth enlarged. 15 L. aulicus ; 16 L. 

 carinatus. 



= 20 SlMOTES ARNENSIS. 

 As in a, but the teeth in the jaws few, the hinder 

 maxillary fang-like. 



1. — Teeth on the pterygoids. 20 S. arnensis. 



2. — No teeth on the pterygoids. 21 to 23, Oligodon, all 



species. 



= 18 POLYODONTOPHIS SUBPUNCTATUS. 

 As in a, but the form of the teeth is very peculiar : 



