POISONOUS SNAKES OF NORTH AMERICA. 433 



found placing with and carrying about live Rattlesnakes without 

 having been hurt.* 



It is somewhat curious that the breeding habits of this species are 

 still almost unknown. At least, very little definite informatiou is on 

 record. The time of pairing is difficult to ascertain. The number of 

 young born at oue birth appears to be about uine. The largest of a 

 number of embryos i)reserved by Prof. S. F. Baird (U. S. Nat. Mus,, 

 No. 1292) and apparently ready to be born is about 245 mm. (9^ inches) 

 long, with a diameter of 12 mm. (one-half inch). 



The Diamond RATTLEt^XAKE. 

 Crofalus adamaiitcitSf Beauvois. 

 Plato 10. 

 1799. — Crolatus adamanteus, t Beauvois, Trans. Am. Philos. Soc. iv, p. 368. — Say, 

 Sillim. Am. Journ. Sc, i, 1819, p.263.— Holbrook, N. Ain.Herpet., led., 

 II, p. 77 (1838).— HoLBROOK, N. Am. Herpet., 2 ed., ill, p. 17 (1842).— 

 De Kay, Zool. New York, iii, p. 57 (1842).— Baird and Girard, Cat. N. 

 Am. Serp., p. 3 (1853).— Le Conte, South. Med. Surg. Journ., ix, 1853 (p. 

 664).— Baird, Pac. R. R. Rep., x, Reptile.s, p. 14, pi. xxiv, fig, 2 (1859). — 

 Jan, Rev. Mag. Zool., 1859, extr. p. 28.— Jax, Elenc. Sist. Ofid., p. 123 

 (1863).— Cope, in Wheeler's Surv. W, 100 Mer., v, p. 534 (1875).— Cope, 

 Proc. Am. Philos, Soc, 1867 (p, 64).— Cope, Proc. U.S.Nat. Mus. xiv, 

 1891, p. 689 (1892).— True, in Hammond's South Carolina, p, 235 (1883).— 

 Garman, Rept. Batr. N, Am., i, Ophid., pp. 112, 171 (1883). — Garman, 

 Bull. Essex. Inst., xix, 1887, p. 122. — Yarrow, in Buck's Ref, Handb. 

 Med. So., VI, p. 166 (1888).— Jordan, Man. Vert. North, U. S., 5 ed., p. 

 199 (1888).— Barringer, Ven. Rept, U. S., p. 4 (1891).— Williams, 

 Science, xx, Dec. 16, 1892, p. 345. — L(ENXBERG, Proc. U. S. Nat. Mu8.,xvii, 

 1894, p. 335.— H, Garman, Bull. Essex. Inst., xxvi, 1894, p. 36.—Cau- 

 disona adamantea, Cope, in Mitchell's Res. Ven, Rattlesu., p. 121 (1861). — 

 Cope, Proc. Phila. Acad., 1866, p. 309. 

 1802. — Crotalus rhomhifer, Latreille, Hist. Nat. Rept., in, p. 197. — Daudix, Hist. 

 Nat, Rept., \, p, 323 (1803). — Dumeril et Bibkox, Erp6t. Geuer., vii, 

 p. 1470 (1854).— DUGES, Naturaleza, iv, 1879 (p. 22). 

 1802. — Crotalus /(OJV(d«s, Latreille, Hist. Nat. Rept., iii, p. 199 (but not p. 186; 

 nor of Linn, 1758). — Harlan, Journ. Phila. Acad., v, 1827, p. 370. — Har- 

 lan, Med. Phys. Res. (p. 133) (1835). 

 1802. — Crotalus durissus, Suaw, Gen. Zoul., in, p. 333 (not of Linn. 1758), 

 1853. — Crotalus terrificiis, Le Coxte, Proc. Phila. Acad., 1853 (p. 419) (not of Laur, 



1768). — Cope, Proc. Phila. Acad., 1859, p. 337. 

 1875. — Crotalus adamanteus, snhsTp. adamanteus, Cope, Bull. U, S. Nat. Mus. No. 1, 

 Check-list, pp. 33, 79.— Cope, Proc. U. S. Nat. Mus., xi, 1888, p. 393.— 

 Cope, Proc. U. S. Nat. Mus., xiv, 1891, p. 690 (1892),— Yarrow, Bull. U. S. 

 Nat. Mus. No. 24, pp. 12, 75 (1883). 

 /'(■(/io-es.— Beauvois, Trans. Am. Philos. Soc, iv, pi. facing p. 380, upper figure 

 (1799). — Shaw, Gen. Zool., in, pi. lxxxix (1802). — Daudin, Hist. Nat. Rept. v 

 pi. LX, figs. 22, 23; pi. lxix, fig. 2 (1803), — Holbrook, N. Am. Herpet., 1 ed., 

 II, pi. XVI (1838); 2 ed., in, pi. n (1842). — Dumeril et Bibkox, Erp^t. Gen., 

 Atlas, pi. Lxxxiv, fig. 3 (1854). — Baird, Pac. R. R. Rep., x. Reptiles, pi. xxiv, 

 fig. 2 (1859).— Jax, Icon. Ophid., livr. 46, pi. ii, fig. 2 (but not fig. 1) (1874),— 

 Yarrow, in Buck's Ref. Handb. Med. Sc, vi. jjl. xxvii (1888). 



* See Forest and Stream, xxxvii, Aug. 6, 1891, p, 44, 

 t From the Latin adamanteus, Diamond-shaped; lozenge-shaped. 

 H. Mis, 184, pt. 2 28 



