Vol. 33, pp. 127—128 December 30, 1920 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW GEOPHIS FROM MEXICO. 

 BY E. R. DUNN. 



Among the snakes brought back from Mexico by Nelson and 

 Goldman is a Geophis which I take to be undescribed. 



Geophis anocularis, new species. 



Type, U. S. National Museum No. 46556; adult d 1 ; collected in 1894 

 by Nelson and Goldman. 



Type Locality. — Totontepec, Oaxaca, Mexico. 



Description of Type. — Scales smooth, without pits, in 17 rows; ventrals 

 124; anal single; subcaudals 35 pairs; labials 6/6; symphysial in contact 

 with chin-shields; two pairs of chin-shields, the anterior the longer; upper 

 part of rostral not more than half its distance from frontal; four lower 

 labials in contact with anterior chin shields; no oculars, eye bounded by 

 prefrontal, loreal, labials 3, 4 and 5, and parietal; prefrontals very large, 

 in contact with parietals. 



The maxillary does not extend forward beyond the palatines, the first 

 tooth is at the level of the suture between the second and third labial. 



Uniform brown above, light yellow beneath; first and second row of 

 scales mixed brown and light; underside of tail more or less mottled with 

 brown. 



Total length, 287 mm.; tail, 52 mm. 



Remarks. — So far as I can see this form ha s little to do with any described 

 Geophis. 



Geophis rostralis (Jan) and Geophis dubius Bocourt are the only ones 

 described as having the symphysial in contact with the chin-shields, but 

 the present species has less ventrals, four instead of three labials in con- 

 tact with the anterior chin-shields, no oculars, and a much less produced 

 rostral. 



Geophis godmani Boulenger is the only described species having the 

 prefrontals and parietals in contact, but it has more ventrals, 15 scale 

 rows, the first lower labials in contact with each other, a long rostral, a 

 postocular, and three lower labials in contact with the chin-shields. 



28 — Proc. Biol. Soc. Wash., Vol. 33, 1920. (127) 



