13. cRoTALUS. 575 
3 (Se. 27; V. 170; Mexico, M, Sallé [C.]. 
"8.5 27). 
k. 2 (Se. 29; V.181; Venezuela. 
C, 22). 
B. Stripes on the neck well-marked. 
a-d. Q (Sc. 29; V. Omilteme, Guerrero. F. D. Godman, Esq. 
182; OC. 23) & yg. [P.]. 
(Sc, 29, 27, 29; V. 
180, 183, 170 ; C. 80, 
22, 29). 
e. Yg. (Sc. 27; V. Yucatan. 
187; C. 23). 
te g (Se 31; V. 181 ; S. Mexico, F, D. Godman, Esq, 
Esq. [P.] 
gy. Fer (Se. 29; V. Mexico. 
172; C, 28). 
h-i. Ye. (Se. 31; V. Berbice. 
176; 0.23) & head 
of adult, 
k. & (Se. 80; V.185; Pernambuco. W. A. Forbes, Esq. 
CO. 25 
iP, 
1. cs, (Se 27; V.171; 8. José dos Campos, Mr. re Thomson [P.]. 
-C, 21). Prov. 8. Paulo. 
m. Ye. (Se. 27; V.175; Brazil. 
C. 29). 
n. Hgr. (Sc. 29; V. Asuncion, Paraguay. Dr. J. Bohls (C.]. 
178; C. 30). 
0. Yg. (Se. 27; V.187; Campolican, Bolivia. 
C. 22). 
p. Skeleton. —? Zoological Society. 
2. Crotalus scutulatus. 
Caudisona scutulata, Kennicott, Proc. Ac. Philad. 1861, p. 207 ; 
Cope, Proc. Ac. Philad. 1866, p. 309. 
Crotalus adamanteus scutulatus, Cope, Check-list N. Am. Rept. 
p. 83 (1875); Garm. N. Am. Rept. p. 118 (1883); Cope, Proc. 
‘Amer. Philos. Soc. xxiii. 1886, p. 287, and Proc. U.S. Nat. Mus. 
xiv. 1892, p. 689. 
— scutulatus, Cope, Proc. Ac. Philad. 1883, p. 11. 
as soe var., Stejneger, Rep. U.S. Nat. "Mus. J. 1898, p. 488 
salvini, Giinth. Biol. C.-Am., Rept. p. 193, pl. lix. fig. A 
(1895). 
Canthus rostralis distinct. Rostral as deep as broad, in contact 
with the anterior nasal; upper surface of head with small shields ; 
two pairs of internasals and two pairs of prefrontals ; two or three 
series of shields between the supraoculars ; supraoculars transversely 
striated, not broader than their distance from each other, in contact 
with four or five shields in addition to the pree- and postoculars ; 
three or four series of scales between the eye and the labials ; 13 
to 16 upper labials. Scales in 25 or 27 rows, dorsals striated and — 
strongly keeled. Ventrals 167-170; anal entire ; subcaudals 18-20, 
