MEXICAN SNAKES AND CROCODILMNS SMITH 471 



♦SISTRURUS CATENATUS TERGEMINUS (Say) 



A single specimen in the Museum bears the locality "Sonora" (No. 

 506) . This was probably taken in an area now included in Arizona. 



SISTRURUS RAVUS (Cope) 



Eleven specimens are in the collection, eight of which were removed 

 from the uteri of one of the three adults secured ; the latter are from 

 Cacaloapam, Puebla (No. 110594), El Limon Totalco, Veracruz (No. 

 110595), and Puente Colorada, Veracruz (No. 110596) ; the last named 

 is the one with the young, and the other two are males. The scutella- 

 tion of the adults, in the order numbered, f ollows : scale rows 21-21-17, 

 23-21-17, 25-21-17; ventrals 144, 142, 147; caudals 26, 26, 29; supra- 

 labials 11-11; infralabials 11-11, 10-10, ?-?; spots on body 28, 33,?; 

 spots on tail 4 in all. 



The Museum has six others, from localities as follows: Oaxaca: 

 Totontepec (Nos. 46555, 46609) . Puebla : Chalchicomula (No. 46352) ; 

 Kinconada (No. 46351 ) . Veracruz : South Table Land (Nos. 25050-1 ) . 



♦SONORA SEMIANNULATA SEMIANNULATA Baird and Girard 



A single specimen in the Museum bears the locality "Sonora" (No. 

 2109, type. 80 This was probably taken in an area now included in 

 Arizona. 



♦SONORA SEMIANNULATA BLANCHARDI Stickel 



A single Mexican specimen in the Museum is from Lake Santa 

 Maria, Chihuahua (No. 46591). 



SPILOTES PULLATUS MEXICANUS (Laurenti) 



Eight specimens are as follows: Chiapas: La Esperanza (Nos. 

 110589-92); Cruz de Piedra (Nos. 110587-8); Finca Juarez (No. 

 110586. Veracruz : Xuchil, near Paraje Nuevo (No. 110593) . All the 

 Chiapas localities are in the vicinity of Escuintla. One specimen was 

 found in a palm tree, chasing a rat. Others were seen on the ground ; 

 one was attempting to crawl up the trunk of a large tree. 



The Museum has nine other specimens as follows : Mexico : Tamauli- 

 pas (Alta Mira, No. 46387). Veracruz: Mirador (Nos. 25004-6); 

 Orizaba (No. 6320) ; Santa Maria (No. 46543) ; hills west of Veracruz 

 (No. 5312) . Chiapas : Huehuetan (No. 64546) ; "Mexico" (No. 12098) . 

 A juvenile is marked as the adult. 



Baird and Girard, 1853, p. 117. 



