ee we. 
/ ae | 
. 
10. rRoPrponotvs. 239 
Natrix usta, Cope, Proc. U.S. Nat. Mus. xi. 1889, p. 392. 
—— compressicauda, Cope, /. c., and xiv, 1892, p. bi, 
—— compressicauda bivittata, Cope, Ul. cc. 
Allied to 7. validus and 7’, clarkii. Frontal shield broad ; loreal 
longer than deep; one pre- and two or three postoculars; a single 
_ anterior temporal; eight upper labials, fourth and fifth entering 
the eye. Scales in 19 or 21 rows, strongly keeled, outer row feebly 
keeled. Ventrals 126-137 ; anal divided; subcaudals 66-81. Tail 
compressed at the base. Dark greyish brown above, much spotted 
and dotted with yellowish, or with blackish markings; belly brown 
or red, with yellow spots, or yellow with two lines of black blotches. 
Florida. 
40. Tropidonotus septemvittatus. 
Coluber septemvittatus, Say, Journ. Ac. Philad. iv. 1825, p. 240; 
- Harl. Med. Phys. Res. p. 118 (1835). 
‘ Tropidonotus leberis, Holbr, N. Am. Herp. iv. p. 49, pl. xiii. (1842) ; 
; , NV. Y. Faun., Rept. p. 45, pl. xi. fig. 23 (1842); Dum. & 
Bibr. vii. p. 579 (1854); Giinth. Cat. p.78 (1858); Jan, Arch. 
Zool. An, Phys. iii, 1865, p. 229, and Icon. Gén. 27, pl. v. fig. 2 
Oe); Garm. N. Am. Rept. p. 27, pl. ii. fig. 1 (1883). 
Loy pedlggsatg Baird § Gir, Cat. N. Am. Rept. p. 45 (1858); H. 
: Bull. Illin. Lab, iii, 1892, p. 272. 
Natrix leberis, Cope, Proc. U.S. Nat. Mus. xiv. 1892, p. 668. 
Head small, scarcely distinct from neck, Eye rather: small. 
Rostral broader than deep, visible from above; nasal semidivided ; 
the prefrontals; frontal hardly once and a half ‘as long as broad, as 
long as or a little longer than its distance from the end of the snout, 
shorter than the parietals; loreal as long as deep or a little longer ; 
te two pree- and two postoculars ; temporals 1+2; seven upper labials, 
+s third and fourth entering the eye; five lower labials in contact 
a with the anterior chin-shields, which are shorter than the posterior. 
ca Seales in 19 rows, all strongly keeled. Ventrals 140-151; anal 
divided ; subcaudals 64-86. Olive-brown above, with or without 
three darker dorsal stripes ; a yellowish lateral streak along the 
first and second rows of scales ; upper lip yellowish ; belly yellowish, 
with four brown stripes, the two median of which may be broken 
up into spots. 
Total length 690 millim. ; tail 160. 
United States east of the Mississippi and Texas, 
a-b. Hgr. g (V.143; C.77) Bloomington, Indiana. C. eet 
anit 4 
“<= 
& 2 (V. 146; C. 67). 
cg. o +; 140, 146, 145; C. N. America. . 
79, 73, ?), V. 161;3'0, 
73), & yg. (V. 141; C. 67). 
_— —*» as a Sie 
— od Te ee 
internasals small, as long as broad, as longas ora little shorter than __ 
