22. CHERSODROMirS. 295 



ej. 2 (V. 144; C. 44) Honduras. 



& hgr. (V. 131, C. 58). 

 (j-i. 6 (V. 134 ; C. 55) British Honduras. F. D. Godman & 0. 



& $ (V. 147, 139 ; Salvin, Esqrs. [P.], 



0. 44, 47). 

 h. S (V. 137; C. 56). British Honduras. Colonial Exhibition. 



/. c^ (V. 141 ; C. 67). Belize. 

 m-p. S (V. 139, 132 ; Teapa, Tabasco. Mr.H. H. Smith [C.J. 



C. 56, 54) & $ (V. F. D. Godman & 0. 



135, 139 ; C. ?, 50). Salviii, Esqrs. [P.". 



y--"- d (V. 143; 0.49), Jalapa, Mexico. Mr. Hoege [C.]. 



2 (V.134; C.43),& 



yg. (V. 136; C. 50). 

 t-v. S (V. 141; C.?), Mexico. Mr.HugoFinck[C.]. 



2 (V. 141 ; 0. 48), & 



yg. (V. 140 ; 0. 45). 

 7v~y. 2 (V. 142, 132 ; Mexico. M. Sallt5 [C.I. 



C. 50, 44) & yg. (V. 



137 ; C. 59). 

 z. 2 (V, 145 ; C. 46). Mexico. 



22. CHERSODROMUS. 



Chersodromus, Reinh. Viil Meddel. 1860, p. 242 ; Jan, Arch. Zool. 



Annt. Phys. ii. 1862, p. 25 ; Bocourt, Miss. Sc. Mex., Kept. p. 552 



(1883). 

 Opisthiodoxi, Peters, Mon. Berl. Ac. 1861, p. 460. 



Maxillary bone very short, not extending forwards beyond the 

 palatines, with about 10 small, equal teeth ; mandibular teeth equal. 

 Head small, slightly distinct from neck ; eye very small, with, 

 vertically subelliptical pupil ; posterior nasal concave ; a single prae- 

 frontal ; no prteocular, loreal and prsefrontal entering the eye. 

 Body moderate, cylindrical ; scales striated and keeled, without 

 pits, in 17 rows ; ventrals rounded. Tail moderate : subcaudals 

 in two rows. Hypapophyses developed throughout the vertebral 

 column. 



Mexico and Guatemala. 



1. Chersodromus liebmanni. 



Chersodromus liebmanni, Reinh. Vid. Meddel. 18G0, p. 243 ; Peters, 

 Mon. Berl. Ac. 1861, p. 617 ; Jan, Arch. Zool. Anat. Phyx. ii. 

 1862, p. 25, and Icon. Gen. 12, pi. iii. fig. 2 (1865) ; Bocourt, Miss. 

 Sc. Mex., Rept. p. 552, pi. xxxiv. fig. 8 (1883). 



nigricans, Reinh. I. c. p. 245. 



Opi.<thiodou torquatus, Peters, Mon. Berl. Ac. 1861, p. 461. 



Rostral once and a half as broad as deep, just visible from above ; 

 internasals small ; frontal broader than long, scarcely longer than 

 the prajfroutal, much shorter than the parietals ; loreal a little 

 longer than deep ; two postoculars, upper .usually fused with the 

 supraocular, which is very small; temporals 1+2; seven upper 

 labials, third and fourth entering the eye ; five lower labials in 



