946 



REPORT OF NATIONAL MUSEUM, 1898. 

 Pseudoficimia frontalis Cope. 



TOLUCA Kennicott. 



Toluca Kennicott, U. S. and Mex. Bouud. Surv., Reptiles, II, 1859, p. 23. — Cope, 

 Proc. Acad. Nat. Sci. Pbila., 1860, p. 241; Bull. U. S. Nat. Mus., No. 32, 1887, 

 p. 82. 



Achirhia Jan, Arch. p. la. Zoolog. Modeiia, 1862, p. 61. 



Cephalic shields normal, except that the frontal is produced between 

 the prefrontals as far as the internasals. Nasal single; loreal wanting. 

 Anal and urosteges divided. 



TOLUCA LINEATA Kennicott. 



Toluca lineata Kennicott, U. S. and Mex. Bound. Surv., 1859, p. 23, pi. xxi, fig. 

 2.— Cope, Proc. Acad. Nat. Sci. Phila., 1860, p. 241. 



Size small, body stout, subcylindrical, deeper than wide. Tail short 

 and thick. Head short and broad, wedge shaped, almost continuous 

 with the body. Snout much depressed, acutely pointed, and projecting 

 beyond the lower jaw. Crown arched throughout. Cephalic plates 

 normal. Frontal very large, subhexagonal, the anterior extremity 

 elongated in a narrow process to the internasals, thus widely separating 

 the prefrontals. Occipitals shorter than frontal, nearly as broad as 

 long. Superciliaries small. Eostral proportionally large, turned back 

 upon the crown, the apex obtusely pointed, and its center forming the 

 acute point of the nose, not concave above. Nasal pentagonal, much 

 elongated, pointed posteriorly. No loreal. One small subpentagonal 

 anteorbital, as long as high; two postorbitals, upper slightly largest; 

 seven upper labials, all higher than long, first much smaller than the 

 second and succeeding rows; lower labials, six. Temporals, 1-2. 



Dorsal scales in seventeen rows, smooth. The scales of the first late- 

 ral rows are higher than long; those of the central rows narrower, the 

 outer row largest. Postabdominal scutella divided; subcaudal all 

 divided. Color above uniform light brownish ash, with three imper- 

 fect longitudinal blackish stripes, each on a single row of scales. 



Besides the typical specimen I obtained a second from the Yalley of 

 Toluca, which agrees with it in all respects. I am not therefore 

 inclined to agree with Boulenger that the characters it presents are 

 anomalous, and that it is a form of Conopsis nasns. Besides the four 

 plates in front of the frontal, and the postfrontals separated by the 

 frontal, the coloration is also characteristic. The Conopsis Uneatus of 

 Bocourt is a different species in my estimation, and, owing to the pres- 

 ence of two pairs of regular plates on the muzzle, and a loreal, referable 

 to the genus Ogmius. 



