6. CHRYSEMTS. 75 



other species ; the marginals are not so highly ornamented, the 

 crescent-shai^ed figures occurring only on the lower surface, and 

 quite pale ; plastron uniformly golden yellow. 

 Mississippi and Louisiana. 



3. Chrysemys reticulata. 



Testudo reticulata, Daud Rept. ii. p. 144, pi. xxi. fig. 3(1802); 



Leconte, Ann. Lye. N. Y. iii. p. 10:^ (18:50). 

 Eniys reticulata, Sc/nvei't/'/. Prodr. p. 31 (1814) ; Bum. i^- Bibr. ii. 



p. 291 (lS:5o) ; Ilolhr. X. Am. Herp. i. p. 59, pi. vii. (1842). ^ 

 Terrapeue n-ticulata, L'onap. 0<scrv. s. sec. El. d. It. A. p. l^.") (1830). 

 Euivs reticularia, Gray, Cut. Tort. p. 25 (1842J, and iSh. licpt. i. p. 27 



(1855). 

 Deirochelys reticulatata, Ayass. Contr. K II. TJ. S. i. p. 441, pi. i. 



figs. 14^10, & pi. ii. figs. i-3. 

 Clemmvs reticulata, Strauch, Chelon. Stiul. p. 32 (1802), and Verth. 



Schi/dkr. p. 78 (1865). 

 Deirochelvs reticularia, part., Gray, Sttpjjl. Cat. Sh. Rept. i. p. 39 



(1870)." 

 Chrysemys reticulata. Cope, Chech-List N. Am. Rept. p. 53 (1875). 



Carapace moderately depressed, regularly ovoid in outline, ohtusely 

 keeled in the young, smooth in the adult ; posterior margin not 

 serrated ; vertebral shields much broader than long, at least as 

 broad as the costals ; nuchal narrow. Plastron large, truncate 

 anteriorly, feebly emargiuate posteriorly ; the width of the hind 

 lobe is less than two thirds that of the carapace ; the width of the 

 bridge about equals the length of the hind lobe ; the longest 

 median suture is that between the abdominals, the shortest that 

 between the humcrals or the pectorals ; suture between the anals 

 a little longer than that between the femorals ; axillary and 

 inguinal shields large. Head moderate ; interorbital space very 

 narrow ; upper jaw not hooked, emargiuate mesially ; alveolar 

 surface as in C. picta (?) ; the width of the mandible at the 

 symphysis much less than the horizontal diameter of the orbit. 

 Digits webbed to the claws. Tail one thiid or one fourth the length 

 of the shell. Carapace dark olive-brown, with a narrow yellow 

 border and a wide-meshcd yellowish network ; plastron and lower 

 surfaces of marginals yellow ; one or two oval black spots on the 

 bridge, and some others on the neighbouring marginals. Head and 

 neck dark olive-brown, with yellowish lines, the two widest of 

 which extend from the nostril to the lip, below the eye, and from 

 below the eye to below the ear respectively ; limbs marbled with 

 yellow. 



The shell reaches a length of 25 centim. ; the specimen in tho 

 collection measures only IQi, 



United States, east of the Mississippi, as far north as N'orth 

 Carolina. 



a. Ilgr., stffd. N. America. 



