SYSTEMATIC LIST AND SYNONYMY. 173 



SOLENOGLYPH A— Continued. 



Var. pyrrhus 



Caudisona pyrrha Cope, 1866, Pr. Phil. Ac, 308, 310; Coues, 1875, 



Wheeler's Eep., V, 608. Crotalus pyrrhus Cope, 1875, Checklist, 33; 



Yarrow, 1875, AVheeler's Eep., V, 535. A doubtful variety. 



Arizona. 



Crotalus oregonus 



Crotalus oregonus Holbr., 1842, Herp., Ill, 21, pi. 3 ; DeK., 1842, N. Y. 

 Fauna, Kept, 57 ; B. & G., 1853, Serp., 145 ; Bd., P. R. R. Rep., X, 

 pi. X, 24, f. 6; D. & B., 1854, Erp., VII, 1482; Cope, 1859, Pr. Phil. 

 Ac., 337. Crotalus lucifer B. & G., 1852, Pr. Phil. Ac., 177, — 1853, 

 Serp., 6 (part); D. & B., 1854, Erp., VII, 1482; Grd., 1858, Herp., 

 Wilkes' Exp., 187, pi. 15, f. 1-6; Bd., 1859, P. R. R. Rep., X, Wil- 

 liamson, 10, pi. 11, pi. 36, f. 1; Cooper, 1860, P. R. R. Rep., XII, pt. 

 2, 295. Caudisona lucifer Cope, 1861, Mitch. Res., 121, — 1866, Pr. 

 Phil. Ac, 307, 309. 



Internasals nnd prefrontals small irregular. Labials 15 to 16, two 

 to three rows of scales between them and the orbit. Scales in 25 

 (25 to 27) rows. Ventrals 168 to 177. Subcaudals 22 to 25. Light 

 brown, tinged with yellow or ash, darker posteriorly. Irregular 

 rhomboid dark-bordered areas of the ground color or darker form a 

 vertebral series. Posteriorly the spots become transverse bands. 

 Outside of the dark borders there are more or less indistinct lines of 

 light color which cross on the flank inclosing a similar small spot on 

 the lower part of the side opposite each of the dorsal series. Of 

 spots and bands there are about forty to the series. A light line 

 crosses the frontals, and passes through the supraciliary to the poste- 

 rior labial. Another line of light color passes in front of the eye, 

 and includes the lower portions of the labials. The dark colors are 

 darker and the light whiter than those of confliientus. 



Oregon to California. 



Var. lucifer 114 



Crotalus lucifer B. & G., 1852, Pr. Phil. Ac, 177, and 1853, Serp., 6, part; 

 Cope, 1859, Pr. Phil. Ac, 337, — 1875, Checklist, 33; Yarr., 1875, 

 Wheeler's Rep., V, 533. Caudisona lucifer Coues, 1875, Wheeler's 

 Rep., V, 606. Crotalus adamanteus var. lucifer Jan, 1863, Sist, 124. 

 Crotalus horridus Gthr., 1858, Cat., 267, ? part. 



California to Mexico. 



Var. CERBERUS 



Caudisona lucifer var. cerberus Coues, 1875, Wheeler's Rep., V, 607. 

 "Nearly black, especially on the head." 



Arizona. 



Var. mitchellii 



Caudisona mitchellii Cope, 1861, Pr. Phil. Ac, 293, 1866, Pr. Phil. Ac, 

 310. Crotalus mitchellii Yarr., 1875, Wheeler's Rep., V, 535; Cope, 

 1875, Checklist, 33. 



Crown scales small, rough. One loreal. Anterior portion of nasal 

 small, higher than long, separated from rostral and labials by small 



