174 SYSTEMATIC LIST AND SYNONYMY. 



SOLENOGLYPH A-Continued. 



scales. Labials 16, the last large, three- rows between them and the 

 orbit. Scales in 25 rows, keels of outer row weaker. Ventrals 198. 

 Subcaudals 26. Greyish-yellow, punctulate with brown. Dorsal 

 spots about 42, lateral angles produced down the Hank. Five black 

 cross bands on the tail. A yellow band from the nasals to the upper 

 borders of the hinder labials. Above this a brown band from the 

 eye. 



Lower California. 



Var. enyo 



Caudisona enyo Cope, 1861, Pr. Phil. Ac, 293, —1866, Pr. Phil. Ac, 

 309. Crotalva enyo Van-., 1875, Wheeler's Pep., V, 534; Cope, 1875, 

 Checklist, 33. 



Internasals and Erontals small, scale-like. Rostral low, equilateral. 

 Nasal in contact with rostral. Numerous small scales in front of the 

 pit. Labials 13 or 11, separated from Orbit by three scales. Infralab- 

 ials 14 or 15. Scales in 23 rows, keels in outer two or three obsolete. 

 Ventrals ltiti. Subcaudals 26. Light greyish-brown, shaded with 

 yellow. A pair of small brown spots on vertex. A light band bor- 

 dered with dark across the supraeiliarics. A hand from the eye over 

 the last labial to the neck. A series of about thirty-three vertebral 

 spots, longer anteriorly, broader posteriorly, and fusing with the lat- 

 eral spots, forming vertical hands on the Hanks. Belly yellow, mot- 

 tled with darker. Resembles C. motossua in coloration. 



Lower California. 



Crotalus EXSULsp. n 114 



Cedros Island. 



Crotai.t-s eiorridus "Banded Rattlesnake" 115 



Crotcdw horridva Linn., 1758, Syst., I, 214. — 1766, Syst., I, 372; Bonn., 

 1790, Ophiol., 1, pi. 2, f. 3; Shaw, 1802, ZooL, III, 317, pi. 88; Cuv., 

 1817, R. An., II, 78, — 1836, R. An., I, 413; Guerin, 1829-38, Icon. 

 R. An., Rept, 15, pi. 23, f. 2; Griffith, 1831, An. King., IX, 207; 

 Gray, 1831, Syn. Rept., 78, mixed; LeC., 185:;, Pr. Phil. Ac, 417; 

 Cope, 1859, Pr. Phil. Ac, 338, — 1875, Checklist, 33; Yarr., 1875, 

 Wheeler's Rep., V, 534. Cavdiaonn horrida Cope, 1861, Mitch. Res., 

 122, — 1800, Pr. Phil. Ac., 309. Caudiiona durissa Laur., 1708, Syn. 

 Rept., 93. Crotalva durissus Gmel., 1788, Syst. Linn., I, 1081, after 

 Laur., mixed; Latr.,1801, Kept., Ill, lot); Daud.,1803, Kept., V, 301, 

 pl. lis, f. 12; Ib.rl., lv>7. Jour. Phil. Ac, 368, — 1835, Med. Res., 132; 

 Schleg., 1837, K.ssai. I. 192, II, 365, 1.1. 20, f. 15, 10; Storer, 1839, 

 Rept. Mass., 233; Holbr., 1842, Herp., Ill, 9, pl. 1; Ik-K., 1842., 

 N. Y. Fauna, III, Rept, 55, pl. 9, f. 19; B. .V I i„ is.',:;, Serp., 1 ; LeC, 

 1853, Med. Jour., 663; Bd., 1S51, N. V. Serp., 9, — 1859, P. R R. 

 Rep., X, Whipple, 39, pl. 24, f. 1; P. & P., ls.54, Erp., VII, 1405; 

 Mart., 1856, Mus. Perl., 34; Jan, 1859, Rev. Mag. Zool., Extr., p. 28, 

 - 1863, Sist., 123, — 1N74, Icon., livr. 40, pl. 1, f. 1,2; Allen, 1869, 

 Pr.Bost.Soc, IT'.i Crotalinus Cyanurw Raf., 1818, Am. Month. Mag., 

 Ill, 440, IV, 41. Urocrotalon durissu* Fitz., 1843, Syst., 29. Uro]>- 



