13. cIsrupo. a7 
rays, or yellowish with smaller or larger blackish blotches. Head, 
neck, and limbs brown, with yellow or orange spots or marblings. 
Length of shell 13 centim. 
Kast United States. 
a, Her., spir. Towa. Smithsonian Instit. 
b. 3, spir. New Haven, Conn. Dr. G. Baur [P. ]. 
Qasr Charleston, 8. Carolina. DrerG Baur es: 
d. Q, stftd. N. America. Dis JH. Gray [ea 
e. 9, stfid. N. America, Dr. J. Green | P.]. 
Ff, 9. 2& her., stffd. N. America. Gen. Hardwicke [ P. }. 
Rta 2, istide N. America, 
k. 3, skel. N. America. 
l. 9, skel. N. America, Dr. Ginther [P.]. 
m.Q, spir. N. America. ; 
The three following forms, which I provisionally admit as varieties, 
perhaps deserve to rank as species :— 
Var. major. 
Cistudo major, Agassiz, Contr. N. H. U.S. i. p. 445 (1857), 
Larger and more oyal, less gibbose. Hook of upper jaw notched, 
bicuspid. Digits shortly but very distinctly webbed. Carapace 
brown with yellow spots, or yellowish olive with dark brown dots 
and margins to the shields; plastron yellow, the sutures between 
the shields blackish. Head and limbs brown with yellow or orange 
spots. 
; Length of shell 17 centim. 
Louisiana, Alabama, Florida. 
a, b,c, d. 3 Q, stftd. Louisiana. W. P. Smith [C.] 
Cijens Pe N. America. 
Var. cinosternoides. 
Emys kinosternoides, Gray, Syn. Rept. p. 32 (1831) *; Dum. § 
Bibr. ii. p. 803 (1835); Gray, Cat. Tort. p. 27 (1844). 
Cistudo triunguis, Agassiz, Contr. N. H. U.S. i. p. 445 (1857). 
Shell as in the typical form. Hook of upper jaw notched, bi- 
cuspid. No trace of web between the digits; only three clawed 
functional digits to the hind limb. Carapace pale olive or yellowish, 
with or without dark spots; plastron uniform yellowish, with the 
sutures blackish. 
Length of shell 13 centim. 
S.E. United States. 
a. 2, spir. Mississippi. Smithsonian Instit. 
6. Q, spir. Zoological Society. 
c. 3, skel. —? 
* Type (in College of Surgeons) examined. 
KZ 
