296 Mr. G. A. Boulenger on 



Cope. Boulenger. 



27. Helicops infratseniatus, Jan. = Helicops cariaicaudus, Wied. 



28. baliogaster, Cope, sp. n. = carinicaudus. 



29. Elaps altirostris, Cope. = Elaps lemniscatus, L. 



30. Bothrops alteruatus, D. ^ B. = Bothrops alternatus. 



BATRACHIA. 



31. Bufo d'Orbignyi, D. 8f B. = Bufo d'Orbignyi. 



32. marinus, L. = marinus. 



33. Engystoma ovale, Schn. = Eugystoma ovale, var. bicolor. 



34. Hyla Vauterii, D. 8f B. = Hyla piilchella. 



35. pulchella, D. 8f B. = pulchella. 



36. Paludicola ranina, Cope, = Paludicola gracilis, Blgr. 



sp. n. 



37. Leptodactylus ocellatus, L. = Leptodactylus ocellatus. 

 38. mystacinus, Burm. = mystacinus. 



39. Pseudis paradoxa, Latir. = Pseudis mantidactyla, Cope ? 



Observations on the above Identifications. 



2, 3. — That the two new species^ Amphisbmna trachura and 

 Aporarchus ijrunicolor .^ the latter the type of a \\^\\ genus, are 

 identical with A. Darwinii I can affirm. The principal 

 character upon which the former is founded, viz. the " several 

 terminal rings of the tail very distinct and divided into promi- 

 nent hard tubercles," is merely an individual anomaly. A 

 species has already been made on a somewhat similar peculi- 

 arity [A. Jieterozonata, Burm.), but has been justly referred to 

 the synonymy of A. Darwinii by Strauch, who has examined 

 the type specimens. The new genus Aporarchus " is simply 

 A mphisbmna without preanal pores." A. prunicolor is nothing 

 but a young specimen in which the pores are undistinguishable 

 (or absent) , as I have myself observed among the numerous 

 specimens of A. Darwinii which have lately passed through 

 my hands. Strauch also mentions a specimen of an Amphis- 

 bsenoid {Anops Kingii) abnormally destitute of preanal pores. 



8. — Very curiously a colour variety of Elapomorphus 

 lemniscatus has been described three times within two 

 months: — by Strauch as Elapomorphus Iheringii., sp. n. ; by 

 myself as a variety of E. lemniscatus ; and by Cope as Pha- 

 lotris melanopleurus, sp. n. I have already shown that the 

 characters given by Strauch do not even justify a subspecitic 

 distinction. This is further confirmed by Cope's description ; 

 while Strauch gives as unique structural character of his new 

 species, as compared with E. lemniscatus , a very broad snout, 

 Cope describes the snout as narrow ; and he also remarks 



