570 VIPERID®. 
Schleg. Phys. Serp. ii. p. 569, pl. xx. figs. 17 & 18 (1837); Holbr. 
N. Amer. Herp. ii. p. ts, pl. xv. (1838); Dum. § Bibr. vii, p. 1477 
); Baird, Rep. U. 8 Explor. Surv. R. R. x., Rept. pl. xxiv. 
a 7 (1859) ; Garm, N. Am. Rept. p. 119 (1883). 
Crotalophorus miliarius, Gray, Ann. Philos. 1825, p. 205; Holbr. 
N. Am. Herp. 2nd ed. ate 25, pl. iv. (1842); Bard &§ Gir. Cat.” 
N. Am. Rept. p. 11 (1853); Cope, Proc, U.S, Nat. Mus. xiv. 
1892, p. 685. 
Caudisona miliaria, Fitzing. N. Class. Rept. p. 63 (1826), 
Crotalophorus miliarius, part., Gray, Cat. p. 17 (1849). 
Sistrurus miliarius, Garm. 1. ¢. g 177; Stejneger, Rep. U.S. Nat. 
Mus. f. 1893, p. 418, pl. vii. (1895). 
Snout with sharp canthus. Rostra] as deep as broad or a little 
deeper than broad; frontal as long as its distance from the end of 
the snout, shorter ‘than the parietals ; upper preocular separated 
from the posterior nasal by a loreal; eye separated from the labials 
by one or two series of scales; temporal scales keeled ; 9 to 11 
upper labials. Scales strongly keeled, in 21 or 23 rows. Ventrals 
127-139; anal entire; subcaudals 27-36 ; rattle short, 10 being 
the highest number of segments on record. Greyish, yellowish, or 
brown above, the vertebral line often orange; one or two dorsal 
series of large dark, black-edged spots, or a series of narrow cross- 
bars, and one or two lateral series of smaller spots; two undulating 
dark stripes from between the eyes to the occiput, the space between 
them usually orange; a dark temporal streak with a light streak 
below it extending from below the centre of the eye to the angle of 
the mouth; whitish beneath, speckled and spotted with dark brown 
or black. 
Total length 520 millim, ; tail 70. , 
South-eastern North America, from North Carolina to Texas, 
a, go (Se. 23; V.137; C,36), Orlando, Florida. 
b. as 2 (Sc. 23 ; V. 138; Louisiana. Smithsonian Insti- 
tution. 
ce. Hgr. 3 (Se. 21; V.127; Louisiana. M. Sallé [C.}. 
O. 34). 
d. 9 (Sc. 23; V. 182; C.33). Texas, 
e,f. gd (Se. 23; V. 139; 0.35) N. America. Dr. R. Harlan [P.]. 
& 2 (Se. 23; V. 134; C. 30), 
g. Yg. (Se. 23 ; ¥. 139; 0.33). N. America, Lord Orkney [P.]. 
hk. 3 (Se. 23; V.135; C. 32). N. America. College of Surgeons. 
i. 6 (8c. 21; V. 127; C. 36). N. America. 
2. Sistrurus catenatus. 
Crotalinus catenatus, Rafin. Amer, some oe aang iv, 1818, p, 41 *. 
Crotalus tergeminus, Say, in Long’s ocky M, i. p. 499 
(1828) ; Harl. Proc. Ac. Philad. y. eat. 372, me Med, Phys. 
~ Feel 135 (1835); Dum. § Bibr. vii. p. 1479, pl. Ixxxiv. d. fig. 5 
(1854). 
—— messasaugus, Kirtland, in Mather's Sec, Rep, Geol, Surv, Ohio, 
p. 190 (1838). 
* I haye not been able to refer to this paper, 
