570 VIPEKID^. 



Schleg. Phys. Serp. ii. p. 669, pi. xx. figs. 17 & 18 (1837) ; Hdlbr. 



N. Amer. Herp. ii. p. 73, pi. xv. (1838) ; Bum. (^ Bibr. vii. p. 1477 



(1854) ; Baird, Rep. U.S. JExplor. Sun. R. M. x., Mept. pi. xxiv. 



fig. 7 (1859) ; Oarm. N. Am. Rept. p. 119 (1883). 

 Crotalophorua miliarius, Gray, Ann. Philos. 1825, p. 205 ; Holbr. 



N. Am. Rerp. 2nd ed. iii. p. 25, pi. iv. (1842) ; Baird Sf 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 miliariua, part., Gray, Cat. p. 17 (1849). 

 Sistrurus miliarius, Garm. I. c. p. 177 ; Stejneger, Rep. U.S. Nat. 



Mus.f. 1893, p. 418, pi. vii. (1895). 



Snout with sharp canthus. Sostra] 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 prsBoeular separated 

 from the posterior nasal bj' 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 : subeaudals 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 

 thera 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. S (Sc. 23 ; V. 137 ; 0. 36). Orlando, Florida. 



b. Hgr. 5 (Sc. 23 ; V. 138 ; Louisiana. Smithsonian Insti- 

 0. 30). tution. 



c. Hgr. S (Sc. 21 ; V. 127; Louisiana. M. SalW [C.]. 

 0. 34). 



d. $ (Sc. 23 ; V. 132 ; C. 33). Texas. 



e,f. S (Sc. 23; V. 139; 0. 35) N. America. Dr. R. Harlan [P.], 



&2(Se. 23;V. 134;C.30). 



.9. Yg.(Sc.28;V. ]39;0.33). N.America. Lord Orkney [P.]. 



'h. d (Sc. 23 ; V. 135 ; 0. 32). N. America. CoUege of Surgeons. 



i. d (Sc. 21 ; V. 127 ; 0. 36). N. America. 



2. Sistrums catenatus. 



Orotalinus catenatus, Rafin. Amer. Monthly Mag. iv. 1818, p. 41 *. 

 Crotalus tergeminus, Say, in Long's JSxped. Rocky M. i. p. 499 



(1823) ; Harl. Proc. Ac. Philad. v. 1827, p. 372, and Med. Phys. 



Res. p. 135 (1835) ; Bum. 4- Bibr. vii. p. 1479, pi. Ixxxiv. b. fig. 5 



(1854). 

 . messasaugus, Kirtland, in Mather's Sec. Rep. Geol. Surv, Ohio, 



p. 190 (1838). 



* I hare not been able to refer to this paper. 



