TORTOISES. 25 



a. Animal and shell in spirits. With a large, oblong, black spot 

 on the centre of each sternal plate. N. America, Cumberland 

 River. From the Leyden Museum. 



The Vermiculated Emys. Emys vermiculata. 



Shell oblong, rather depressed, bluntly keeled, longitudinally 

 rugose, dark brown, pale spotted; hinder margin rather dilated, 

 toothed ; under surface rather convex, pale, with a multitude of 

 small confluent black spots often suffused ; sternal shields dark- 

 edged, front and marginal plates vermiculated with black dots ; 

 nuchal shield elongate ; first vertebral plate 4-sided, suburceolate, 

 broader than long, second elongate suburceolate, margin not ring- 

 ed beneath. 



a. Shell only, 6£ iDches. Vertebral plates irregular. Tropical 



America ? 



b. Shell only, 9^ inches. Sternum pale, dark clouded. Tropical 



America. 



The Mobile Emys. Emys Mobilensis, Holbrook, N. Amer. 

 Herpet. ii. 53, t. 9. 



Shell oval, keelless, convex anteriorly, depressed posteriorly, 

 entire in front, emarginate and subserrated behind, olive with 

 forked lines, longitudinal upon the vertebral, transverse on the 

 costals; the first vertebral plate urceolate ; jaws serrated, inferior 

 furnished with a hook ; sternum yellow, slightly clouded with black, 

 margin with a yellow-ringed black half spot on each edge. Ani- 

 mal very like A. Floridana, but streaks broader. 



Inhabits N. America, at Mobile, Alabama. 



The Neat Emys. Emys concinna, Dum.et Bib.E. G. ii.289. 

 Testudo concinna, Leconle, Ann. Ta/c. N. Y. iii. 106. 



Shell oblong, depressed, keelless, very smooth, nicked behind, 

 dark brown varied with yellow netted lines; first vertebral plate 

 6-sided, second, third and fourth broad 6-sided, nuchal shield 

 small, oblong : beneath yellow, with large black sutural spots on 

 the margin ; head and neck yellow-lined. 



Inhabits N. America. 



The Chicken Tortoise. Emys reticularia, Merrem, Tent. 

 29. Gray, Syn. 27. Testudo reticularia, Lair. i. 124. T. reti- 

 culata, Bosc. Dutid. Rept.il 144, t. 22, f. 3. Sehicag. 50. Say, 

 Jour. N. S. Phil. iv. 204, 109. Hum. et Bib. E. G. ii. 291. Hol- 

 brook, N. Amer. Herpet. ii. 41. Emys geographica, Mus. Bell. 



Shell oblong, keelless, olive brown, pale netted, longitudinally 

 rugose, hinder edge entire; shields with a black-edged pale ring 

 round the areola sending out radiating lines ; first vertebral quad- 

 rate, rest squarish, 6-sided, with three or four round black spots 

 placed on the sutures of the under side of the lateral marginal 



D 



