ON THE REPTILIA OF PERU. 171 



ASIXEA. 



42. EtJNECTES MURINUS, L. 



From the Amazon. 



43. Boa constrictor, L. 

 From the Solimoens. 



44. XlPHOSOMA HORTULANUM, Lin. 



From Iquitos on the upper Maranon. 



45. Leptognathus catesbyi, Wieg. 



From Rioja, Peru, the Maranon, Iquitos upper Maranon. 



46. Rhinobothryuji lentiginosis:, Scopoli. 



47. Dipsas cenchoa, L. 



Iquitos. 



48. Sibon annulatum, L. 

 From the Solimoens. 



49. Gerrhosteus prosopis, Cope, Proceed. Acad. Philada. 1874, p. 71. 

 From Nauta, Peru. 



50. Scytale coronatum, Linn. 



51. Oxyrrhopus fitzingerii, Tschudi, Fauna Peruana Reptiles, p. 56. 

 Valley of Jequetepeque. 



52. Oxyrrhopus petolarius. Subsp. petolarius, L. 



53. Dryophis argentea, Daud. 



54. Leptophis marginatus, Cope : Tlirasops marginatus, Cope, Proceed. Academy Philadn. 



1862, p. 349; Ahsetulla nigromarginata, Giinther, Ann. Magazine Nat. History, 1866. 



55. Leptophis ortonii, Cope, sp. nov. 



Scales smooth, in fifteen series. Head rather short, muzzle equal or shorter 

 than width between eyes. No loreal plate ; postnasal about as large as prcnasal 

 plate ; preoculars scarcely reaching frontal. Two postoculars. Temporals large, 

 1-2, followed by smaller scales. Superior labials nine, fifth, and sixth only 

 bounding orbit. Seven lower labials in contact with geneials. Tail very long, 

 two-fifths of the total. Gastrosteges not angulate, three times as wide as long. 



M. 



Total length (No. 1) 965 



Length of tail (No. 1) 390 



Total length (No. 2) 950 



Length of tail (No. 2) 400 



45 



