6. CHRYSEMYS. 79 
blackish spot or concentric rings; the markings on the bridge 
usually confluent into a longitudinal figure. 
Kansas, Illinois, and One to the Gulf of Mexico and the Rio 
Grande. 
a, 9, spir. Ohio. 
b. 9, spir. Washington, Miss. Smithsonian Inst. [P.]. 
e. Shell. Washington, Miss. Smithsonian Inst. | P. }. 
d,e. 6 & yg., stfid. Louisiana, 
J. Hey. shell. Louisiana. (Type of Emys holbrookit.) 
g- Ye. », Spir. New Orleans. 
A. Nig, spir. Matamoros, Mexico. Smithsonian Inst. [P.]. 
a. Ye. 3 ” spir. N. America. DrwJe Hy Gray e: 
(Type of Lmys sanguinolenta.) 
k. 2, spir. N. America. (Type of Trachemys lineata.) 
1, m,n, 0,p,9,7,8 3,2, N. America. 
hor., & ye. stftd. 
t. 2, skel. N. America, 
Var. rugosa. 
? Testudo palustris, Gmel. S. N. i. p. 1041 (1789). 
Testudo rugosa, Shaw, Zool. iii. p. 28, pl. iv. (1802). 
Emys decussata, Gray, Syn. Rept. p. 28 (1851); Bell, Test. p. — 
pls. — (1842); Dum. § Bee: a p. 279 (1835) ; Pree in Sagra, 
Uist. Cuba, Rept. p- 6, pl. 1. (1843); Gray, Cat. Tort. p. 24 
(1884) ; Reinh. & ae Vad. Meddel 1862, p. 290. 
rugosa, Gray, Syn. Rept. p. 80; Dum. § Libr. p. 284; Coct. 
lc. p. “iil pl. u.; Gray, Cat. Tort. p. 24, and Sh. Rept. i. p. 31 
(1855) ; Gundlach, Rep, fis.-nat. Cuba, ii. p. 104 (1868) ; Vilaro,t. ec. 
p. 119; Sowerby § Lear, Tort. pls. xlii., xliii. (1872). 
vermiculata, Gray, Cat, Tort. p. 25, and Sh. Rept. 1. pl. xii. D. 
Ptychemys decussata, Agassiz, Contr. N. H, U. S.i. p. 434 (1857). 
Clemmys decussata, Strauch, Chelon. Stud, p. 38 nee), and Verth. 
Schildkr. p. 81 (1865). 
rugosa, Strauch, Verth. Schildkr. p. 81. 
Emys jamao, Vilar, lc, p. 121 (1868). 
Pseudemys decussata, Gray, Stop Cat. Sh. Rept. 1. p. 46 (1870). 
Trachemys rugosa, Gray, l. ec, p. 48. 
In this form, which varies greatly as to the degree of convexity 
of the shell, the bright bands on the soft parts have a tendency to 
disappear, or disappear entirely and are replaced by black marblings. 
The carapace may be uniform brown or olive, or blotched or mar- 
bled with black, the blotches sometimes following the borders of 
the shields ; plastron yellowish, uniform or blotched or vermiculated 
with blackish, or with symmetrical sinuous or annulate dark 
markings ; in some specimens black bands follow the sutures 
between the shields. 
Length of shell 28 centim. 
West Indies (Cuba, Jamaica, San Domingo, Porto Rico, Guade- 
loupe, Martinique). 
a. @, stfid. S. Domingo. 
b. 3, skel. S. Domingo. 
ce. 2, skel. S., Domingo. Paris Museum [E. ]. 
