SYSTEMATIC ACCOUNT OF THE SPECIES. 199 



64. Arrhyton vittatum (Gundlach & Peters). 

 Plate 15, fig. 12, 13. 

 Culebrita. 



Diagnosis: — A small burrowing snake red above and white below with 

 two dark lateral stripes and generally a darker dorsal brown band. Size less 

 than the preceding species, usually about ten inches. 



Description: — Adult M. C. Z. 10,846. Cuba: 10 miles S. W. of Aguada 

 de Pasajeros, near Rio Hanabana, Spring of 1915. Thomas Barbour. 



Rostral much broader than high, barely visible from above; internasal 

 suture far shorter than prefrontal suture; frontal one and one third as long as 

 broad, as long as its distance from the tip of snout which is about the same as 

 the parietal suture; nostril small, pierced in a single nasal; loreal moderate, 

 rectangular, longer than high; one small preocular, two postoculars the upper 

 the larger; temporals 1+2; seven upper labials, third and fourth entering 

 eye; fom* lower labials in contact with the anterior chin-shields; seventeen 

 rows of smooth scales around the body; 123 ventrals, anal divided, seventy-one 

 subcaudals. 



Colour (in Ufe) : — Bright brick-red, a dark brown band from the middle 

 of the third to the upper third of the foiuth rows of scales; no evidence of a 

 median middorsal stripe. Lower siufaces cream-yellow. 



Dimensions: — Total length 244 mm. 



Length of tail 82 . 2 mm. 



M. C. Z., 7,925 from near Cienfuegos, 1910, R. M. Grey collector, is the 

 same as the specimen described in colom" except that it has faded slightly and 

 has a distinct middorsal stripe. Its scale counts are 115 ventrals, anal divided, 

 fifty-three subcaudals. 



M. C Z., 7,952 from near the Rio Anallo, Cuba, collected by Bamum 

 Brown and received in exchange from Amer. Mus. Nat. Hist., 1910, is exactly 

 similar to the preceding in colour and counts 122 ventrals, anal divided, sixty 

 subcaudals. 



We cannot see that this species differs from the preceding in habits or 

 distribution. We have seen no specimens nearly as large, nor none in which 

 the rostral region is modified as in the specimen of A. taeniatum described or 



