148 



COLUBRIDJE. 



Total length 430 millim. ; tail 70. 

 Southern Brazil. 



a. Hpr. 

 C. 67). 



(V. 170; Lagos, Sta. Catharina. Hr. Michaelie [C.]. 



4. Xenodon neuwiedii. 



Xenodon rhnbdocephalus, part., Dttm. fy liibr. vii. p. 768 (1P64) ; 



Giinth. Cat. p. 56 (1868); Jan, Arch. Zool. Anat. Phys. ii. 1863, 



p. 317, and Icon. Gin. 19, pi. v. fig. 1 (1866). 

 neuwiedii, Giinth. Ann. $ Mag. N. H. (3) xii. 1863, p. 364, 



pi. v. fig. C ; Henetl, Arch.f. Nat. 1808, p. 228. 



severus, part., Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 317. 



neovidii, Cope, Proc. Ac. Philad. 1868, p. 133. 



Maxillary teeth 13-15 + 2. Head moderately depressed. Rostral 

 shield once and a half to once and two thirds as broad as deep, the 

 portion visible from above measuring about one fourth to one third 

 its distance from the frontal ; internasals broader than long (if but 

 very slightly), shorter than the prsefrontals ; frontal longer than 

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

 or a little shorter than the parietals ; loreal as long as deep or 

 deeper than long ; one prse- and two postoculars ; temporals 1 -f 2 ; 

 eight upper labials, fourth and fifth entering the eye ; five lower 

 labials in contact with the anterior chin-shields, which are larger 

 than the posterior. Scales in 21 rows. Ventrals obtusely angulate 

 laterally, 152-176 ; anal divided (exceptionally entire); subcaudals 

 50-69. Above with more or less distinct, dark brown, black-edged, 

 angular cross bars separated by narrow yellowish or pale olive 

 interspaces ; usually a large A or A-shaped dark marking on the 

 nape ; a 0-shaped dark band round the head, passing through the 

 eyes, and a dark cross bar between the eyes ; belly yellowish, 

 usually with brown dots which crowd together to form cross bands ; 

 usually a few deep black spots on each side of the anterior part of 

 the body. 



Total length 800 miUim. ; tail 130. 



Southern Brazil. 



Rio Janeiro. 



A [py Esq '] 



a,b,c-e. rf (V. 170,162; 



C. 65, 62), 2 (V. 162; 



C. 56), & yg. (V. 166, 152; 



C. 60, 50). 

 /-. d (V. 174 ; C. 65) & yg. Rio Janeiro. 



(V. 154, 163, 166; C. 61, 



53, 68). 

 *-? J (V. 159, 163 ; C. 63, Rio Janeiro. Mrs. Fry [P. 



59) & $ (V. 162, 164, 



165, 164, 169; C. 60,51, 



63, 60, 60). 

 r. d (V. 175 ; C. 63). 



(Types.) 



s. Yg. (V. 166 ; C. 64). 

 t. Skeleton. 



S. Jo8<$ doa Mr. A. Thomson [P.]. 



Campos, Prov. 



S. Paulo. 



Santos, Brazil. Christiania Museum. 

 Rio Janeiro. A. Fry, Esq. [P.]. 



