112. ATKACIUS. 309 



d. 2 (V. 154 ; C. 35). Surinam. C. W. Ellascombe, Esq. 



[P.]. 



e. J (V. 14G ; C. 17). Cayenne. 



B. Pale reddish brown above, with more or less regular black 



cross bars ; belly spotted with brown. 



/. 2 (V. 154; C. ?). Surinam. llr. Ivappler [C.]. 



C. Black above, with pale brown cross bars ; belly with a median 



series of black spots. 



i^. J (V. 158; C. 38). Yurimaf^uas, Iliial- Dr. ILihnel [0.]. 



laga R., N. Teru. 



D. Pale reddish brown above ; snout black, back of head yellow, 



followed by a black collar ; back with two alternating series of 

 black spots, connected on the anterior part of the body by a 

 black vertebral line ; belly dotted all over with brown. 



h. S (V. 147; C. 30). Manaos, Brazil. Sr. A. Peixoto [C.]. 



E. Brown above, with black-edged yellow cross bands ; back of 



head yellow ; belly dotted with brown, with two series of 

 brown spots along the middle line. 



i-k. 2 (V. 145, 154 ; Para. 



C. 24, 24). 



14. Atractus torquatus. 



Calamaria badia, part., Schleg. PJiys. Serp. ii. p. 35 (1837). 

 Rabdosoma torquatum, Dimt. t^- Bibi: vii. p. 101 (1854). 



varium, Jan, Arch. Zool. A7iat. Fhys. ii. 1802, pp. 18, 125, 



and Icon. Gen. 11, pi. iii. fig. 3 (1805). 



Snout obtusely pointed. Rostral small, nearly as deep as broad, 

 just visible from above ; internasals very small ; prjcfrontals at 

 least as long as broad ; frontal once and one third to once and a 

 half as long as broad, as long as its distance from the end of the 

 snout, shorter than the parietals ; loreal three times as long as 

 deep ; one postocular ; temporals 1 + 1 or 1 + 2 ; eight upper 

 labials, fourth and fifth entering the ej'e; four (or three) lower 

 labials in contact with the single pair of chin-shields, which are 

 rather elongate, moderately broad, and separated from the sym- 

 physial. Scales in 17 rows. Ventrals 140-165; anal entire; 

 subcaudals 35-47. Pale brown above, with small darker spots or 

 narrow cross bars ; yellowish beneath, with small brown spots. 



Total length 600 millim. ; tail 75. 



Guianas. 



a, h. S (V. 155; C. 47) & r»emera.r.a Falls. 



2 (V. 105 ; C. 43). 



