ee ee ee ee 
ee 
10. TROPIDONOTUS. 245 
five longitudinal ‘alternating series of blackish ; lower parts 
dark brown spotted with yellow, or yellow spotted with brown. 
Total length 930 millim. ; tail 220. 
United States east of the Mississippi, as far north as Ohio. 
oS (Se. 29; V. 138; C. 64). New Orleans. 
b. Yg. 
(Se. 29; V. 132; C.79). Lake Kerr, Florida. A. Erwin Brown, 
e. Yg. (Se. 31; V. 136; 0.73). Florida. Smithton In- 
a. 2 (Sc. 29; V. 187; C. 69). United States, 
47. Tropidonotus taxispilotus. 
ee taxispilotus, Holbr. N. Am. Herp. iv. p. 35, pl. viii. 
ne Dum. § Bibr. vii. p. 605 (1854); Jan, Arch. . Anat, 
8. lii. 1865, p. 222, and Icon, Gén. 26, pl. v. fig. 1 (1868); 
Garm, N. Am. Rept. p. 26 (1883). 
Nerodia taxispilota, Baird & Gir. Cat. N. Am. Rept. p. 43 (1858). 
Seg ryan taxisp ase” var. brocki, Heilprin, Explor. Florida, 
. 129, pl. xvii. ; 
Natrix taispilote, Cope, Proc. U.S. Nat, Mus. xi. 1889, p. 392. 
Head small; eye rather small. lRostral broader than deep, 
visible from above ; internasals narrow, as long as or a little shorter 
than the preefrontals; frontal once and a half to once and three 
fourths as long as broad, nearly as long as its distance from the end 
of the snout; parietals very short, broken up into scales posteriorly ; 
loreal longer than deep; one pre- and two postoculars ; temporals 
2+4 or 5 (or 143); eight upper labials, fourth entering the eye; 
five or six lower labials in contact with the anterior chin-shields, 
which are nearly as long as the posterior. Scales in 29 to 33 rows, 
strongly keeled, outer row more or less distinctly keeled. Ventrals 
130-144; anal divided; subcaudals 70-83. Brown above, with 
three alternating series of large quadrangular dark brown spots; 
lower parts whitish, spotted or marbled with brown, the brown 
colour usually predominating. 
Total length 1310 millim. ; tail 300. 
Eastern United States from New York to Florida. 
a-b. 2 (Se. 31; V. 139; C. 73), N. America. Lord Ampthill [P. 
& yg. (Se. 31; V. 139; C. 83). (P} 
c-d. g (Se. 31, 31; V. 136,136; Savannah, Paris Museum [P.]. 
C. 70, ?). Georgia. 
Ill. Awpuresma.—Maxillary teeth not more than 30, last two or 
three abruptly enlarged. 
Fig. 15. 
oe 
NN 
Maxillary of Tropidonotus tigrinus, 
a on 
_ 
