tf CINOSTERNID 2. 
a-b, $, spir. Cosamaloapam, Mexico. M. Sallé [C.]. (Types of 
Swanka maculata.) 
e-d. $9, spir. Guatemala. O. Salvin, Esq. [C. ]. 
e. 6, stitd. C. America. 
11. Cinosternum cruentatum. 
Cinosternum cruentatum, A. Dum. Cat. Méth. Rept. p. 16 (1851), 
and Arch, du Mus. yi. p. 238, pl. xvi. (1855); Gray, Cat. Sh. Rept. 
i, p. 44 (1855) ; Bocourt, Miss. Sc. Mex., Rept. p. 23 (1870), and 
Journ. de Zool. v. p. 898 (1876) ; Giinth, Biol. C.-Am., Rept. p. 13, 
pls. ix.—xi, (1885). 
—— mexicanum, Leconte, Proc. Ac. Philad. 1854, p. 182 ; Riitimeyer, 
Verh. Naturf. Ges. Basel, vi. p. 41 (1874). 
—— scorploides, part., Gray, l.c. p. 44. 
triliratum, Leconte, Proc. Ac. Philad, 1859, p. 6; Giinth. lc. 
14, 
santa scorpioides, part., Gray, Suppl. Cat. Sh. Rept. i. p. 67 (1870). 
—— mexicana, Gray, 1. c. p. 69. 
cruentata, Gray, 1. ¢. 
—— trilirata, Gray, l. c. 
Cinosternum shawianum (non Bell), Bocourt, Journ. de Zool. v. p. 397. 
Head moderate ; jaws strong ; beak not or but very feebly hooked. 
Digits extensively webbed. Carapace tricarinate, the keels becom- 
ing very obtuse in old specimens. Plastron entirely closing the box 
and without bridge in the adult; lobes well movable, anterior 
usually longer than the immovable portion, posterior not nicked ; 
gular shield about half the length of the front plastral lobe; pectoral 
shields triangular or forming a very short median suture; axillary 
and inguinal shields usually separated. ‘Tail of male ending in a 
nail-like horny tubercle. Carapace brown; plastron yellow or 
brown, the sutures between the shields blackish. Sides of head 
and neck marbled with brown and yellowish (in spirit); Jaws and 
throat yellowish, spotted or streaked with brown. 
Length of shell 15 centim. 
Central America. 
a,b. 3 Q, spir. Tonala, Chiapas. F. Sumichrast [C.]. Messrs. 
Salvin and Godman | P.]. 
e. Her., shell. Tonala, Chiapas. F, Sumichrast [C.]. Messrs. 
Salvin and Godman [P. ]. 
d. Yg., spir. Tonala, Chiapas. F. Sumichrast [C.]. Messrs, 
Salvin and Godman [P.]. 
ef. Yg., spir. Oaxaca. Mr. Hoege [C.]. 
g, h. 2, stttd. Mexico. 
2 9, shell. C. America. Rev. J. Allen [P.]. 
5) 
k. Q, spir. f T. Bell, Esq. [P.]. 
l. od, spir. —? 
Cinosternum alboqulare, Bocourt, Miss. Se. Mex., Rept. p. 23, and 
Journ. de Zool. v. p. 899, should perhaps be regarded merely as a 
variety of C. cruentatum, characterized by uniform yellowish-white 
jaws.—Hab. Costa Rica. 
