414 PROCEEDINGS OF THE NATIONAL MUSEUM vol.93 



The Museum has eight other specimens, as follows: Chihuahua: 

 Guadelupe y Calvo (Nos. 46486-7), Distrito Federal: Mexico City 

 (No. 12724) ; Tlalpam (No. 46353). Durango: El Salto (No. 46485). 

 Michoacan: Patzcuaro (No. 46424). San Luis Potosi: Mountains 

 near Jesus Maria (No. 46425) . Zacatecas : Plateado (No. 46469) . 



CROTALUS POLYSTICTUS (Cope) 



Three female specimens are from Tacicuaro, Michoacan (Nos. 

 110604-6). Scale counts of these, in the order numbered, are: Scale 

 rows ?-27-19, 33-27-21, 29-27-21; ventrals 168, 171, 169; caudals 20, 

 20, 22; supralabials 14-14, 13-14, 13-14; infralabials 15-15, 14-15, 

 14-15. 



The Museum has nine others, from "Guanajuato" (Nos. 24448, 26152, 

 46508) ; "Mexico" (No. 29775) ; Valley of Mexico (No. 32170) ; Pla- 

 teado, Zacatecas (Nos. 46330-1) ; and Tupataro (Guanajuato? Micho- 

 acan? Jalisco?) (Nos. 10250, 11363). 



CROTALUS SCUTULATUS SCUTULATUS (Kennicott) 



Ten specimens, all from the state of Chihuahua, were collected : 10 

 miles north of Casas Grandes (No. 104609), and Eio Santa Maria, 

 near Progreso (Nos. 104610-3, 104615-8, 104621). 



The Museum has four other Mexican specimens, from "Chihuahua" 

 (Nos. 14225, 14278); Chihuahua City (No. 46450); and Casas 

 Grandes, Chihuahua (No. 46373). 



CROTALUS SCUTULATUS SALVINI Gunther 



Crotalus scutulutus salvini Gloyd, Chicago Acad. Sci. Spec. Fubl. 4, pp. 201-202, 

 map 15, 1940. 



One specimen, from San Diego, south of Tehuacan, Puebla (No. 

 110926). A male, with 21-25-17 scale rows, 164 ventrals, 26 caudals, 

 13-15 supralabials, and 14-15 infralabials. 



The Museum has no others. 



♦CROTALUS STEJNEGERI Dunn 



The Museum has two specimens, the type (No. 46486) and a para- 

 type (No. 46460) from Plomosas, Sinaloa. 25 



CROTALUS TRISERIATUS TRISERIATUS (Wagler) 



Two specimens (male) are from Tacicuaro, Michoacan (Nos. 110597, 

 110925). Scale rows 25-23-17, 23-23-17, respectively; ventrals 147, 

 146; caudals 24, 25; supralabials 11-? ; infralabials 12-?, 11-12. Dor- 



25 Dunn, 1019, p. 213 ; Gloyd, 1910, pp. 232-233, map 21, pi. 29. 



