NATURAL SCIENCES OF PHILADELPHIA. 845 



In one of our specimens all the rings are complete, in another several are 

 incomplete, appearing as elongate oval spots bordered with yellow, and in the 

 third, as many as five successive rings are wanting on the gastrosteges. This 

 appears to be a smaller and darker colored species than corallinus, of which 

 some consider it a variety. 



47. E. corallinus Neuwied. 



Two sp. South America. ? 



48. E. nigrocinctus Girard, Proc. Acad. Nat. Sci., vii., p. 226, 1854??? 

 U. S.' Astronomical Exped. ii., p. 210. Aug. 1855. E. divaricatus, Hallow. Jour 

 Acad. Nat. Sci. iii., p. 36, May, 1855. 



Three sp. Honduras. Dr. J. L. Le Conte. 



Two sp. Panama. " 



One sp. Nicaragua. Mr. Amory Edwards. 



The coloring of the body of this species is that of corallinus, while the 

 head has that of f u 1 v i u s. 



***Rings complete, arranged three and three. 



49. E. altirostris, nobis. Head scarcely distinct, lanceolate, compressed, 

 its height and breadth at the eye equal. Muzzle rounded, narrow, high, pro- 

 minent. Cephalic shields large ; superior labials seven, high ; the eye resting 

 on the division line of the third and fourth. Tail short, (possibly mutilated,) 

 one eighteenth of the whole length. 



Scales in fifteen rows. 



Colors in spirits. Body with fourteen triads of complete rings of a deep 

 chocolate brown, sometimes confluent on the belly. Spaces between these four 

 or five scales wide, of a pale yellow brown shade, each scale tipped with darker. 

 Spaces between outer and central rings of the triads covering two scales, which 

 are broadly tipped with chocolate. The color of the head is a continuation of that 

 of the anterior outer ring of the first triad. The following, however, are the mark- 

 ings of white : The occipitals (except the outer borders) and plate3 surround- 

 ing them ; the anterior borders of the inframaxillaries and inferior labials ; a 

 line bordering the fifth superior labial above, and reaching to the occiput. 



Gastrosteges 194; anal 1, divided; urosteges 15. Length 29 inches, 6 lines; 

 tail 1 inch, 5 lines. 

 One sp. ? ? 



A robust species, resembling E. lemniscatus, except in the color and form 

 of the head. In respect to the latter, it differs from any other species which we 

 have seen, but resembles the figure of E. Bertholdi, Jan. loc. cit., except in 

 the absence of the preocular. 



50. E. dissoleucus nobis. Head slightly distinct, muzzle acutely 

 rounded and projecting. Body not slender, not stout. Tail distinct, tapering, 

 short, one-eighteenth of the total length. 



Vertical plate small, elongate, obtuse behind ; superciliaries broad; occipitals 

 very elongate ; eyes very small. Scales fifteen rows. Body red, with seven sets 

 of three black rings together ; the central ring not twice as wide as the exterior 

 ones, and separated from them on each side by ring of white, four scales wide ; 

 each white scale bordered with black. Viewed from above the head, and for 

 four scales behind the occipital plates is black, except a band of red, which 

 includes the fifth, sixth, and most of seventh superior labials, nearly all the 

 postoculars, anterior part of the occipitals, but not extending across the median 

 line, which is black. On the throat and chin the black only appears on three 

 gastrosteges, and the front inferior labials. 



Gastrosteges 200; anal 1, divided; urosteges 19. Length 22 inches, 6 lines; 

 of tail 1 inch, 4 lines. 

 One sp. Venezuela. Dr. Chas. D. Meigs. 



One of the most elegant species of the genus, and having some similarity to 

 E. e 1 e g a n s Jan, Rev. et Mag. Zool., 1858, p. 524. The rings which are white 



1859.1 



