112. ATKACTTJ8. 309 



<;. S (V. 154: 0. 35). Surinam. C. W. EUasoombe, Esq. 



[P.]- 

 e. S (V. 140 ; C. 47). Cayenne. 



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



cross bars ; belly spotted with brown. 



/. ? (V. 154; C. ?). Surinam. Hr. Kappler [C,]. 



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



series of black spots. 



g. 6 (V. 158; 0. 38). Yurimaguas, Hual- Dr. Hahnel [0.]. 



laga R., N. Peru. 



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. <3 (V. 147 ; 0. 30). Manaoa, 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, Phys. 8erp. ii. p. 35 (1837). 

 Rabdosoma torquatum, Dum. %■ Bibr. vii. p. 101 (1854). 



varium, Jan, Arch. Zool. Anat. Phys. ii. 1862, pp. 18, 125, 



and Icon. G4n. 11, pi. iii. fig. 3 (1865). 



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

 just visible from above ; internasals very small ; prefrontals 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 postooular ; temporals 1 + 1 or 1 + 2 ; eight upper 

 labials, fourth and fifth entering the eye ; 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, b. d (V. 165 ; 0. 47) & Demerara Falls. 



2 (V. 166 ; 0. 43). 



