Rhabdosoma badium Boie; Upper Amazon 24 ( 9 ) 



Rhabdosoma elaps Gunther; Upper Amazon.... 24 (10) 



Rhadmaea decorata GMnther ; Mexico 23 ( 8) 



Rhadinaea flavilatus Cope; Florida 25 ( 6) 



Rhinobothryum lentiginosum Scopoli ;Brazil . 28 ( 4) iMPHIBlANS 

 Rhinochilus lecontei Baird and Girard; 



Texas 18 (12) 



Rhinostoma nasuum Wagler; S.America 25 (13) 



Salvadora bairdii Jan; Mexico 16 ( 7) 



Scolecophis atrocinctus Dumeril and 



Bibron; Central America 28 (11) 



Scytale coronatum Schneider ;South America. 25 (14) 



Sepedon haemachates Merrem; South America. 29 ( 3) 



Sibon nigrofasciatum Gunther; Nicaragua... 28 ( 6) 



Sibon septentrionale Kennicott; Mexico.... 28 ( 5) 



Spilotes sebastus Cope; Surinam 14 ( 7) 



Stenorhina ventral is Dumeril and Bibron; 



Mexico,.,,......, 27 ( 8) 



Storeria dekayi Storer; North America 20 (10) 



Storeria occipitomaculata Holbrook; 



North America 20 (11) 



Stylosoma extenuatum Brown; Florida 16 (12) en 



Symphimus leucostomus Cope; Mexico 18 (11) 



Tachymenis peruvianus Wiegmann;Peru 25 (11) 



Taeniophal lus nicagus Cope;Brazil 25 ( 4) 



Tantilla melanocephala Schlegel -.Brazil . . . . 28 (12) 



Tantilla rubra Cope; Mexico 27 ( 5) ICES 



Thamnodynastes nattererii Mikas; 



southern Brazil 25 (10) 



Thamnodynastes strigatus Gunther; 



southern Brazil 25 ( 9) 



Thrasops flavigularis Hallowell; W. Africa.' 17 ( 7) 

 Tomodon ocellatus Dumeril and Bibron; 



Uruguay ,.,..,. 25 (12) 



Tragops laetus Cope; Further India 28 (15) 



Tretanorhinus variabilis Dumeril and 



Bibron; Cuba 23 (11) 



Trimetopon pliolepis Cope; Costa Rica,.... 18 ( 1) 

 Trimorphodon biscutatus Dumeril and 



Bibron ; Mexico 28 ( 7 ) 



Tropidoc Ionium lineatum Hallowell; Texas.. 20 (12) 

 Tylanthera florulenta Geoffroy; western 



Asia..... 19 ( 6) 



7. 



