418 Dr. A. Giinther on new Species of Snakes 



Body brownish olive ; upper side of tlie head and neck 

 black, with symmetrical yellow markings arranged along the 

 margin of the head ; a pair of yellow dots on the occipitals ; 

 a series of black dots along the vertebral line ; a well-defined 

 deep-black streak runs along each side of the body along the 

 meeting edges of the fourth and fifth outer series of scales ; it 

 extends to the extremity of the tail. Lower parts uniform 

 whitish. 



A single specimen, 10| inches long, was obtained by Mr. 

 Theobald in Pegu ; tail 3 inches long. 



CyclopMs nehulosus. PI. XIX. figs. C. 



Body slightly compressed j tail rather short ; head of mo- 

 derate length, distinct from neck. Eye of moderate size ; 

 loreal elongate ; one prseocular, scarcely reaching to the upper 

 surface of the head ; two postoculars ; eight upper labials, the 

 fourth and fifth entering the orbit, the sixth small, much 

 smaller than the fifth ; temporals elongate, 1 + 2 ; anterior 

 chin-shields longer than posterior, in contact with four labials. 



Scales in fifteen rows, short, rounded, without apical groove; 

 ventrals 174; anal bifid; subcaudals 77. 



Greenish olive. Anterior part of trunk with four or six 

 series of obscure nebulous spots, which are confluent into lon- 

 gitudinal bands on the posterior part of the trunk. Head im- 

 maculate ; lower side uniform whitish. 



A single example was obtained by Mr. Whitely at Naga- 

 saki. Total length 9^ inches, length of head 5 lines, of tail 

 2 inches. 



Enicognathus annulatus (D. & B.). 



Varies in the number of the black cross bands, which are 

 irregular in shape ; ventral shields 140-156. An example 

 from Vera Paz is considerably more slender than others from 

 the city of Mexico. It appears to be rare. 



Dromicus viperinus. 

 Scales in seventeen rows. Ventral shields 160-161 ; anal 

 bifid ; subcaudals sixty. Upper labials eight, the third, fom-th, 

 and fifth entering the orbit ; loreal higher than long ; one pree-, 

 two postoculars; temporals 1 + 2 + 8. The posterior maxil- 

 lary tooth is the longest, and separated from the preceding by 

 an interspace. Upper parts blackish grey, this colour extend- 

 ing, without interruption, over the sides to the edge of the 

 ventral shields. Neck with a darker collar, from which a dark 

 zigzag band proceeds along the median line of the back ; it 

 becomes indistinct on the posterior part of tlie trunk, and re- 



