116 REPTILES. 



slender. Uniform olive-green, sometimes with two narrow, paler, 

 longitudinal streaks ; beneath uniform pale olive ; ventral shields 

 recurved on the sides. 



A. With conspicuous longitudinal streaks. 



a. Adult. Para. From Mr. Stevens's Collection. 



b. Adult. Demerara. From Mr. Snellgrove's Collection. 



c. Adult : injured. Maracaibo. Presented by Mr. Lowe. 



d. Adult. Venezuela. From Mr. Dyson's Collection. 



e,f. Young : not good state. W.Indies. Presented by Colonel 



Reid. 

 g. Adult : head injured. West Indies. Presented by Edward 



Cook, Esq. 



B. Without streaks. 



h. Adult. Mexico. From Hugo Finck's Collection. 

 i. Adult. West Indies. Presented by Colonel Reid. 

 k. Adult. West Indies. Presented by G. Cook, Esq. 

 I. Adult. West Indies. From Mr. Scrivener's Collection. 

 m. Adult. Berbice. 



n. Adult. America. From the Paris Museum. 

 0. Adult : greatly injured. America. 

 p. Half-grown. America. 



4. Herpetodryas brunneus. 



Scales keeled, in seventeen rows ; nine upper labials ; above 

 uniform broA;vn, beneath yellowish. 



a. Adult. Guayaquil. 



Description of the specimen. — Habit like that of H. boddaertii. 

 Shields of head proportionate ; vertical rather broad in front, 

 ■with concave outer edges and a right angle behind. Occipitals 

 rather small, divergent behind, and forming a rather obtuse angle ; 

 anterior ocular siugle, raised on the surface of crown, but not 

 reaching the vertical ; two posterior oculars ; nine upper labials, 

 the fourth, fifth and sixth coming into the orbit ; five temporal 

 shields, two of which are in contact with the oculars. Scales 

 elongate, in seventeen rows, those of the seven dorsal rows keeled. 

 Above uniform brown (without epidermis olive) ; belly yellowish, 

 the dark coloration of the back extending on the edges of ab- 

 domen. Length of the cleft of mouth 1 " ; length of tail 12"; total 

 length 39". 



5. Herpetodryas rappii. 



Scales smooth, in seventeen rows ; one anterior ocular ; nine 

 upper labials, the fourth, fifth and sixth touching the orbit. 



