99. CONTIA. 



269 



shields short and in contact with three or four labials ; second pair 

 very small. Scales in 17 rows. Ventrals 110-137 ; anal divided ; 

 subcandals 23-40. Grey or pale brown above, with dark brown 

 (sometimes light-edged) spots or cross bands, or with a series of 

 smaU dark spots forming a vertebral stripe, which may be accom- 

 panied by another more or less distinct stripe along each side ; 

 upper surface of head speckled with dark brown, sometimes with 

 symmetrical markings; belly yellowish or red, uniform or with 

 blackish dots or square black spots. 



Total length 290 millim. ; taU 50. 



Mexico. 



A. Intemasala distinct. 



a-e. f? (V. 128 ; 0. 36) & 



$ (V. 137, 133, 135, 



128; C. 29, 31, 28, 



28). 

 f-g. Yg. (V. 135, 122; 



C. 30, 26). 

 h-l. 2 (V. 129, 133, 131 ; S. Mexico. 



C. 30, 30, 31) & vg. 



(V. 125 ; 0. 29). " 

 m. cJ (V. 131 ; C. 35). Mexico. 



La Cumbre de los 

 Arrastrados, Tal- 

 pa Mascota, Ja- 

 lisco. 



Puebla. 



Dr.A,C.Buller[C.]. 



Paris Museum [E.]. 



Mr.H.H.SmithrC.]. 

 F. D. Godman, Esq. 



[P.]. 



B. Internasal distinct on one side, fused with the praefrontal 

 on the other. 



n-o. Yg. (V. 128, 122 ; 0. La Cumbre de los 

 27, 39). Arrastrados. 



Dr. A. 0. BuUer [0.]. 



C. Intemasals fused with the praefrontals. 



p-r. S (V. 128, 125; 0. 



38, 37) & ? (V. 133 ; 



C. 29). 

 s-w. d (V. 115, 119 ; 0. 



33, 86), $ (V. 130, 



129; 0. 23,26),&yg. 



(V. 129 ; 0. 28). 

 X. cJ (V. 132 ; 0. 36). 

 y-h. 3 (V. 131, 128; 0. 



40, 39) & $ (V. 129, 



128, 130, 132; C. 31, 



?, 33, 38). 

 e. S (V. 131 ; 0. 35). 



La Cumbre de los 

 Arrastrados. 



OmUteme, Guerrero. 



Milpas, Durango. 

 Mexico. 



California (.?). 



Dr. A. C. Duller [C.J. 



Mr. H. H. Smith [C.]. 

 F. D. Godman, Esq. 



[P.]. 



Hr. A. Forrer. 

 M.SaUg[C.]. (Types.) 



Mr. Bridges [C.]. 



Toluea lineata, Kennicott, U.S. Mex. Bound. Surv. ii. Eept 

 p. 23, pi. xxi. fig. 2 (1859), and Rep. U.S. Explor. E. E. x. pt. iii! 

 pi. XXXV. fig. 8 (1859),= Oxyrhina (Achirhina) defilippii^ Jan 

 Arch. Zool. Anat. Phys. ii. 1862, p. 61, are based on what are in 

 aU probability, anomalous specimens of G. nasus, in which the 

 frontal shield is so produced anteriorly as to separate the prse- 

 frontals. 



