81. EHADIK^A. 173 



a. Hgr. $ (V. 170 ; C. 64). Rio Janeiro. A. Fry, Esq. [P.]. I 



b. Ilg-r. cJ (V. 147 ; 0. 71). Rio Janeiro. G. Biisl:, Esq. [P.]. ( 



(Types.) 



c-e. S (V. 178; 0. P) & Rio Grande do Sul. Dr. li. v. Ihering 

 yg. (V. 172, 176; 0. [0.]. (Types of 



58, ?). C. iheringii.) 



/■.$ (V. 185; 0.65). Theresopolis. Fischer Collection. 



16. Rhadinsea poecilopogon. 



Dromicu3 affinis, part., G'dntk. Cat. p. 128 (1858). 



Rhadinsea poeoilopog-on, Cupe, Proc. Ac. PhUad. 1863, p. 100 ; 



Gtiiith. Zool. Pec. 1866, p. 125. 

 Enicognathus elegans, Jmi, Arch. Zool. Anat. Phys. ii. 1863, p. 268, 



and Icon. Gen. 16, pi. i. fig. 3 (1860). 

 Dromicus melanocephalus, Peters, Mon. Berl. Ac. 1863, p. 277. 

 ? Liophis persimiliti. Cope, Proc. Ac. Philad. 1868, p. 308. 

 Goronella poecilopogon, Boulemj. Ann. ^ Mag. N. H. (5) xv. 1885, 



p. 194, and xviii. 1886, p. 4:31. 

 Enicognathus bilineatiis, Fischer, Jahrb. Hmnb. Wiss. Anst. ii. 1885, 



p. 98, pi. iii. tig. 5. 



Eye rather small. Rostral broader than deep, scarcely visible 

 from above ; interuasals broader than long, shorter than the prie- 

 froutals ; frontal once and two thirds as long as broad, much longer 

 than its distance from the end of the snout, and a little shorter than 

 the parietals ; loreal as long as deep or deeper than long ; one pra;- 

 and two postoculars ; temporals 1+2; seven upper labials, third 

 and fourth entering the eye ; four lower labials in contact with the 

 anterior chin-shields, which are shorter than the posterior. Scales 

 in 17 rows. Ventrals 141-164 ; anal divided ; subcaudals 66-75. 

 Length of tail 85 to 4 times in the total length. Back bro-wn, with 

 three black longitudinal lines or series of dots ; sides usually dark 

 grey, which colour extends upon the sides of the ventrals ; head 

 dark brown or blackish, with a white line round the snout, along 

 the caiithus rostralis, and from the eye to the second upper tem- 

 poral ; upper lip white, brown-dotted ; ventral region yellowish in 

 the middle, with a lateral series of small black spots or short lines, 

 ■which may be confluent into a streak on the hinder half of the 

 body. 



Total length 440 miUim. ; tail 120. 



Southern Brazil, Paraguay, and Uruguay. 



a-b d (V. 151 ; 0. 75) & Rio Grande do Sul. Dr. H. v. Ihering [C.]. 

 (V. 160; 0.69). 



c. 2 (V. 163 ; 0. 70). Sta. Catharina. Dr. H. v. Ihering [C.]. 



d. cJ (V. 141 ; 0. 72). Santos. Dr. J. G. Fischer's 



Collection. (Type 

 of JS. bilineatus.) 



e. c? (V. 155; C. 66). Brazil. Haslar Collection. 



(One of the types of D. affinis.) 



f. J (V. 154; 0.72). Paraguay. Prof. Grant [P.J. 



