28 EMYS. 



Hab. in America Boreali, Daud. Say, (v. t. Mus. D. Bell.) 

 There are three or four round black spots placed in the 

 sutures of the under sides of the lateral marginal plates, some 

 linear spots in the sutures of the hinder ones, and also an 

 oval-eyed spot on each end of the sterno-costal symphysis. 



21. Emysvittat a, {Ba?ided- Necked Terrapin.) — Testaovato 

 oblonga sub-convexa levi, obscure carinata, postice duplici- 

 dentata, fusca lineolis inequalibus luteis variegata, lineis cen- 

 tralibus sub-annulatis, lateralibus transversis, raarginibus supra 

 maculis quadratis luteo nigroque annulatis, subtus maculis 

 ocellatis utrinque suturis impositis, sterno piano lutescente, 

 scutellis axillaribus inguinalibusque lato nigro annulatis ; capite 

 pedibusque luteo lineatis. 



Hab. in America Boreali. (Mus. Brit.) 

 This is somewhat like Kmysconcinna, Le Conte Mss. Cav. 

 R. A. Guerin Iconogr. t. f. which is also T. geometrica 

 of Lesueur according to the same authority. Indeed the 

 figure may be intended for this species. I did not observe 

 any specimen under that name in the Paris Museum. The 

 British Museum specimen is not quite full grown and has 

 lost great part of its colour. The first vertebral plate is 

 nearly square, and the others broadly hexagonal. 



22. Emys decussata, [Decussated Terrapin.) Testa oblonga 

 pallide fusca obtuse carinata postice subdentata, subtus 

 lutescente, maculis subocellatis scutellis axillaribus inguinali- 

 bus suturque marginalium impositis ; scutellis rugulosis 

 irregulariterradiatim sulcatis ; animal virescens, genis gulaque 

 obscure pallide lineatis. 



Emys decussata, Bell, MSS. (v. v. Mus. Bell.) Test, 

 serrata, Daud. (non fig.) Eviijs Serrata, Schw. ? var. 

 Potter, dicta Harlan ? 



Junior. Testa obscure fusco variegata ; sterno fascia cen- 

 trali irregulari viridi nigro marginata, annulisque duobus 

 nigris antice ornato. 



Hab. in America Boreali, (v. v. Hort, nost. et t. Mus. 

 Brit. &c.) 



This species is often brought alive to this country ; but it 

 does not appear to have been as yet well described. It is 

 easily distinguished by its uniform colour, and irregularly 

 radiately grooved plates, decussated by small, irregular, 

 concentric wrinkles. 



The young is obscurely varied with darker brown on the 



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