SYSTEMATIC LIST AND SYNONYMY. 171 



SOLENOGLYPH A— Continued. 



Mitch. Res., 120, — 1866, Pr. Phil. Ac, 308. Crotalus horridus Latr., 

 1801, Rept., Ill ISO; Daud., 1803, Rept, V,311; Max., 1824, Beitr. 

 Bras., I, 1:',">, — 1827, Abbild. Bras., lief. 11, pi. 4; Kit/.., 1826, Neue 

 class.,!;::; Wagl., 1830, ^.uiph., 176; Schleg., 1837, Kssai, II, M], pi. 



L'ii, E. L2-14; Gray, ism, Cat., 2( ixed); D. & I'.., 1854, Erp., VII, 



1472, pi. si bis, i. 2; .Marl., 1856, Mus. Berl., 34; .Ian, 1859, Rev. A 

 Mag. Zool., Extr., p. 28, - 1863, Sist., 124, 1874, Icon., livr. 46, pi. 

 3, f. 1-2. Caudisona terriflca Laur., 1768, Syn. Rept., 93; Cope, 1861, 

 Mitch, lies., 120,— 1866, IV. Phil. Ac, 308. Crotalus terrificus Yar- 

 row, 1875, Wheeler's Rep., V, .">:;2. Crotalus cascaveUa Wagl., 1824, 

 Spix. Bras. Serp., 60, pi. 24, — 1830, Syst., 170. Crotalus gimus Latr., 

 1801, Rept, III, 202; Daud., 1803, Rept, V, 321. Crotalus l<,ijlh,<jii 

 IIuuil.., 1833, Recueil d'l >bs. Zool., p. 6; < tope, 1861, Mitch. Pes., 120. 

 Li Boiquira, p. 390, ami I,< durissus, p. 42:i, LaC, 1739, Serp., II, text 

 only. 



Brazil to Mexico. 



Var. MOLOSSUS 113 



.( 'rotalusmolossus B. & G., 1853, Serp., 10 ; D. & B., 1854, Erp., VII, 14S2; 

 Bd., 1859, Mex. Bound., II, Rept, 14, pi. ::, — 1859, I'. R. I!. Rep., X, 

 Rept, pi. 24, f. 5; Cope, 1859, Pr. Phil. Ac, 338, — 1875, checklist, 

 :;:;; Yarrow, 1875, Wheeler's Pep., pp. 531, •"':::'.; Coues, is;."), Wheel- 

 er's Rep., Y, mi."). Caudisona molossus Cope, 1861, Mitch. Res., 124, — 

 1866, Pr. Phil. A,'., 308. Crotalus cnn/lne Hall., 1854, Pr. Phil. Ac, 

 192, — 1859, P. R. R. Pep. (Parke's), X, pi. 2, pi. 24, f. 5, — Cope, 

 1859, Pr. Phil. Ac, 338. 



Northern Mexico; Arizona; New Mexico. 



Var. BASILISCUS ." 



Caudisona basilisca Cope, 1864, Pr. Phil. Ac, 166, — 18G6, Pr. Phil. Ae., 

 008. Crotalus bagiliscus Yarrow, 1875, Wheeler's Pep., V, 532. 



Muzzle plates two pairs, a third pair subdivided. Rostra] higher 

 than wide, in contact with nasals ami internasals. Labials 14, sep- 

 arated from suborbitals by two and three rows. Scales iii 29 rows, 

 outer largest, outer three smooth. Ventrals 199. Subcaudals 24. 

 Pale yellowish-brown, head and tail darker. Markings on entire 

 Scales. Dorsal rhombs about thirty; five obscure rings on the tail. 

 Two elongated occipital spois. No lines on the neck. Labials yel- 

 lowish. 



Western Mexico. 



Crotalus adamanteus (Diamond Rattlesnake) 112 



Crotalus adamanteus Beauv., 1799, Trans. Am. Phil. Soc, IV, 3G8; 

 Ilolhr., 1842, Ilerp., Ill, 17, pi. 2; DeK., 1842, N. V. Fauna, Rept, 

 57; II. & G., 1853, Serp., :'.; Bd., 1859, P. P. P. Rep., X, pi. 24, f. 2; 

 LeC, is;,:;, Med. Jour., IX, 664; .Tan, 1859, Rev. Mag. Zool., Extr., 

 p. 28, — 1863, Sist., 123. — 1S74, Icon., livr. 46, pi. 2, f. 2: Yarrow, 

 1S75, Wheeler's Pep., V, 534; Cope, 1*77. Pr. Am. Phil. Soc, <>4. 

 Orotalus terrificus Cope, 1859, Pr. Phil. Ac, 337; LeC, 1853, Pr. Phil. 

 Ac, 419. Caudis i adamantea Cope, 1861, Mitch. Pes., IL'1, — 1S66, 



