EMYS. 27 



The shields elegantly and minutely dotted with black and 

 yellow, and in the smooth variety beautifully black and yellow 

 rayed. Those of the sternum have a square black areola 

 placed on their hinder margin According to Mr. Say, the 

 skin of the animal is above of a uniformly dark greenish brown 

 and beneath fulvous. 



19. Ehiys concentrica, [Concentric Terrapin.) — Testa ovali 

 subconvexa leviter tuberculato carinata, scutellis ossibusque 

 subtus pallide luteis, zonis fuscis concentricis ; cute albido 

 nigro punctato. 



Testudo centrata, Bosc. D. H. Nat. xxii. 264. (v. t. Mus. 

 Par.) Test. Terrapin, Schoepf, t. 15. — Latr.Rept. t. 6, f. 2. 

 Test pnlustris, Gmel. Emys centrata, Schw. 



a. livida. Testa livida obscure annulata. Emys livida. 

 Bell. Mss. (v. t. Mus. Bell.) 



/3. polita. Testa margins revoluta, scutellis nigris politis 

 profunde sulcatis, sterno lutescente maculis magnis nigris 

 notato, (v. t. Mus. Col. Surg, et D. Bell.) 



Junior. Testa carinis continuis, scutellis sterni nigro mar- 

 ginatis ; cute albido cinereo nigro maculato, capite colloque 

 lineis nigris notatis. 



Habit, in America Boreali. (v. v. Hort. Bell.) 

 The head of the living animal is very broad and depressed, 

 like the Hydraspes, and the neck thick ; they are slate -co- 

 loured, black-speckled. In the young specimens the skin 

 is bluish and black-speckled ; the forehead is marked with 

 concentric black lines, and there are three curved black lines 

 over each ear ; the neck is also marked wath short black 

 strokes. The polished variety appears very different, but I 

 have seen specimens which unite it with the common state 

 of the species. 



Cuvier (R. A. ii. 11 note,) indicates an Emys concentrica 

 of Le Conte, as distinct, but I do not find it described. 



20. Emys reticularia, {Reticulated Terrapin.) Testa oblonga 

 olivaceo fusca pallide reticulata, postice Integra, scutellis, 

 fasciis radiatis annulisque pallidis nigro marginatis areolas 

 circumdantibus, vertebralibus Imo. quadrato, rehquisquadrato- 

 hexagonalibus, marginalibus subtus macuhs nigris suturalibus 

 3 vel 4 lateralibus rotundatis aliisque posticis linearibus, 

 axillaribus inguinalibusque macula ocellata ornatis ; sterno 

 angusto lateribus subcarinatis. 



Test, reticularia, Latr. Test, reticulata, Bosc, Daud, t. 

 22, f. 3, (fig. accurata.) Emys reticulata, Sixy. Emys geo- 

 graphica, Mus. Bell, (v. Miis. Bell.) 



