278 coltjbeidj:. 



a. 5 (V. 12o; C. 43). ? LevdenMiis. (Type.)- 



b. 5 (V. 123; C. 51). Lagoa Santa. Prof. Eeinliardt [P.]. 



(One of the types of K. assimih's.) 



c. d. 5 (V. 122 ; 0. 5.5) Porto Keal, Prov. Rio M. Hardy du Dreueuf 

 & yg. (V. 119 ; C. 64). Janeiro. [C.]. 



8. Helicops leopardinus. 



Homalopsis leopardina, Schlef/. Fhi/s. Serp. ii. p. 358 (1837). 

 Dimades leopardina, Gr(ty, Zool. Misc. p. 65 (1842). 

 Tacliynectes leopardina, Gmy, Cat. Sn. p. 69 (1849). 

 Helicops lepvieurii, Diwi. S," Bihr. vii. p. 750, pi. Ixviii. [Uranops 



Severe] (1854) ; G'dnth. Ann. ^- Mac/. N. H. (3) yii. 1861, p. 427 ; 



Jan, Arch. Zool. Anat. PJiys. iii. 1865, p. 253, foid Icon. Gen. p. 28, 



pi. iv. figs. 2 & 3 (1868). 

 leopardinus, Jan, 11. cc. p. 251, pi. iii. fig. 2. 



Eye small ; rostral visible from above, forming a narrow suture 

 with the internasal ; frontal nearly twice as long as broad, widening 

 behind, longer than its distance from the end of the snout, shorter 

 than the parietals ; loreal deeper than long (rarely absent) ; one 

 prse- and two postoculars ; temporals 1 or 2 +2 or 3 ; eight or nine 

 upper labials, fourth or fourth and fifth entering the eye ; four or 

 five lower labials in contact with the anterior chin-shields, which 

 are as long as the posterior. Scales in 19 rows (sometimes 21 on 

 the nape), more or less strongly keeled, outer rows usually smooth 

 or feebly keeled. Ventrals 118-131; anal divided; subcaudals 

 53-83. Dark olive or brown above, with four or five alternating 

 series of black spots ; a light streak from below the eye to the angle 

 of the mouth, sometimes connected with its fellow by a light cross 

 bar on the nape ; lower parts checkered or cross-barred, black and- 

 yellow. 



Total length 630 millim. ; tail 160. 



Guianas, Brazil. 



a. 2 (V. 121 : C. 66). Surinam. Lidth de Jeude Coll. 



b. 2 (V. 118 ; C. 69). Cayenne. 



c. d. d (V. 124 ; C. 70) Bahia. Dr. O. Wuclierer [C.]. 

 & $ (V. 127 ; C. 58). 



e-f, g- $ (V. 125, 131, 128 ; Bahia. 



C. 53, 65, 63). 



9. Helicops angulatus. 



Coluber an^ulatus, Linn. Mns. Ad. Frid. p. 23, pi. xv. fig. 1 (1754),. 



and S N. i. p. 377 (1766) ; Band. liept. vii. p. 209 (1803). 



surinamensis, Shcno, Zool. iii. p. 460 (1802). 



Natrix aspera, W'ayl. iii Spi.v, Scj'J). Bras. p. 37, pi. xiii. (1824). 

 Homalopsis angulata, Schlcg. Pliys. Sop. ii. p. 351, pi. xiii. figs. 24 



& 25 (1837). 

 Uranops angulatus, Gray, Cat. p. 08 (1849). 

 Helicops anuulatus, Daju. S^- Bibr. vii. p. 746 (1854) ; Guntli. Ann. 



8) Mag. N. H. (3) vii. 1861, p. 428 ; Jan, Arch. Zool. Anat. Phi/s, 



iii. 18i;5, p. 251, and Icon. G6n. 28, pi. iv. fig. 1 (1868). 



