MEXICAN SNAKES AND CROCODILIANS SMITH 



463 



is identified as p. poecilonotus by Amaral (1929, p. 312), but this form 

 occurs in Mexico only in the Yucatan Peninsula, from which the 

 specimen probably did not originate. It is a juvenile, with the lunu- 

 latus pattern ; present specimens show that this pattern is not confined 

 to p. poecilonotus as previously thought. In fact, the young of p. 

 argus and p. poecilonotus are practically inseparable. 



Table 28. — Variation in Pseustes poecilonotus argus 



RHADINAEA AEMULA Bailey 



One specimen (No. 110373) is from Kilometer 58, near Tres Cum- 

 bres, Morelos, collected by E. H. Taylor and H. M. Smith. It is a 

 female, with 169 ventrals, 106 caudals, 8-8 supralabials, 10-10 infra- 

 labials, a presubocular present. 



The Museum has no others. 



RHADINAEA CRASSA Smith 



Plate 32, Figure 1. 



Rhadinaea crassa Smith, Proc. Biol. Soc. Washington, vol. 55, pp. 190-191, pi. 3, 

 figs. 4, 5, 1942. 



One specimen, a paratype (No. 110366), is from Barranca de los 

 Horcones, 10 km. south of Durango, Hidalgo. It is a badly crushed 

 specimen found in the road. 



The Museum has no others. 



RHADINAEA DECORATA (Gunther) 



Plate 32, Figure 3. 



Sixteen specimens are from the following localities in Veracruz: 

 Pefiuela (Nos. 110362-3). Cuautlapan (Nos. 110354-61); Potrero 

 Viejo (Nos. 110348-53). One of the specimens from Pefiuela con- 

 tained a Bolitoglossa rufescens in its stomach. 



The infralabials are 9-9 in one ; one preocular on both sides in one, 

 on one side in another; three preoculars on one side in one. Variation 

 in caudal and ventral counts is given on the accompanying table. 



