Reptiles and Batrachians from Brazil. 195 



side of each caudal ; a few other minute dots scattered on the 

 ventrals ; gular region brown, with yellowish black-edged 

 spots. 



Three specimens ; the largest measures 600 millim., into 

 which the tail enters for 120. 



*22. Dromicus melanostigma (Wagl.). 

 Dromicm Pleii, Gthr. nee D. & B. 



23. Philodryas cestivus (D. & B.). 



24. Philodryas Schottn (Fitz.) . 



25. Spilotes variabilis (Wied). 



26. Heterodon D 1 Orbignyi, D. & B. 



27. Helicops carinicaudus (Wied). 

 28. Oxyrrhopus petalarius (L.). 



29. Thamnodynastes Nattereri (Mik.), var. Icevis. 



P Thamnodyyiastes punctatissimus, liens, nee Wagl. 



Agrees with the typical form of T. Nattereri in the length 

 of the tail, which is less than one fourth of the total, with 

 T. punctatissimus in the perfectly smooth scales. Ventrals 

 142 or 143, caudals 62 or 63 f. 



*30. Leptognathus Mikanii (Schleg.). 



31. Elaps lemniscatus (L.). 



BATRACHIA. 



1 . Engy stoma ovale, var. bicolor, Yal. 



*2. Pseudis mantidactyla (Cope). 



*3. Ceratoplirys dorsata (Wied). 



4. Ceratophrys americana (D. & B.). 



5. Paludicola falcipes (Hens.). 



Leiuperus falcipes, Hens. 



6. Paludicola gracilis, Blgr. 



Paludicola gracilis, Blgr. Ann. & Mag. Nat. Hist. (5), xi. 1882, p. 17. 

 Gomphobates notaius, Hens, nee Reinh. & Liitk. 



t Other specimens of this form in the Natural-History Museum show 

 that it reaches as far north as the Guianas, the typical T. Nattereri being 

 apparently restricted to the southern half of Brazil, reaching as far south 

 as Buenos Ayres. The number of ventrals varies between 188 and 150, of 

 caudals between 58 and 68. 



