CATALOGUE OF SHIELD REPTILES. 



C9 



Gvinnopus spiniferus, Bum. ^ Bib. Erp. Gen. ii. 477. t. 22. 



■f. 1 ; Cat. Meth. R. 22. 

 Trionyx carinatus, Geo^. Ann. Mns. xiv. t. 4. 



Merrem, Tent. 21, youna;. 

 Aspidonectes feiox, IVayler, Sijst. t. 2. f. 34, 3.5. 

 Trionyx Biongniartii, Schweiy. Prod. i. 288. 

 Freslmater Turtle, Garden. 

 Fierce Turtle, Shaw. 

 Testudo Boddaertii, Schneid. Leipz. Ma(/. Nat. ^ CE/cnn. 



1706, iii. 263. 

 Platypeltis ferox, Fitz. Sijst. Rept. 30. 



Hab. North America ; Georgia and Florida ; New Or- 

 leans. 



(I. Adult (stuffed). North America. Presented by the 

 Royal Society. The specimen described and figured 

 by Pennant (re-stuffed). 



b. Half-grown (iu spirits). North America. 



c. Young (in spirits ; bleached). North America. Mr. 



Frank's Collection. 



d. Very young (in spirits). Back with small dark rings. 



North America ; Wabash River. From the Paris 

 Museum . 



Trion\-x ocellatus, Lesueur, Wied, Voy.Amer. Sept. iii. 242. 

 Trionyx annulatus, ITled, Voy. Amer. Sept. iii. 242. 



Of all the animals of the familv of Chelomdes, they fur- 

 nish the most delicious and nourishing food. — Leconte. 



M. Wagler separates Trionyx carinatus, Geoff., into a 

 section of his genus Aspidonectes distinct from T. ferox, 

 and he regards T. ferox, T. muticus and T. spiniferus as 

 three species. — Syst. 134. 



e. Adult female. With a row of large spines in front of 

 the disk. North America. Mr. W. Smith's Collec- 

 tion. 



f. Adult male. Back of shell deformed, very high, almost 



conical ; front edge of disk with a series of spines. 

 North America. 



g. Half-grown (stuffed). Front of disk with very small 



spines. North America. Mr. W. Smith's Collection. 



In these three specimens (e, f y) there is a greater space 

 between the inner ends of the lateral callosities than in the 

 one described by Pennant, but this may probably arise from 

 their not being quite so adult. 



The following species are very doubtful. The first ap- 

 pears to depend on a badly observed young specimen, and 

 the latter most probably arises from the error of the artist 

 and the describer. 



10. Trionyx muticus. The Unarmed Trionyx. 



Thorax much depressed, without any spinous tubercles 

 on the front edge. 



Trionyx muticus, Lesueur, Mem. Mus. xv. 257. t. 7. 



hulbrook, N. A. He'pet. ii. 19. t. 2. 



Leconte, Ann. Lye. N. Y. ii. 95 (1830). 



Gray, Syn. Rept. 46. 

 Gymuopus muticus, Bum. ^ Bib. Erp. Gen. ii. 482. 



Hab. North Auierica ; North-western lakes and Western 

 rivers. Mus. Paris. 



" I cannot however as yet consider it perfectly distinct." 

 — Leconte. 



The Soft-sc.\led Turtle, Bartram, Travels, t. 2. 



Trionyx Bartrami, Baud. Rept. ii. 74. 



Leconte, Ann. Lye. N. Y. iii. 96 (1830). 

 Tortue de Bartram, Cuv. R. A. n. 16. 

 Testudo ferox verrucosa, Schoepjf. Hist. Test. 96. 

 Chelys Bartrami, Geo^. Ann. Mus. xiv. )8. 

 Trionyx ferox (3. verrucosa, Schweiy. Prod. 286. 



Hab. North America (Bartram). 



Cuvier {R.A.n. 15), I think, correctly, regards Bartram's 

 figure as only a T. ferox to which the artist has given addi- 

 tional claws, and some aiijjearance of dorsal shields, pro- 

 bably arising from the specimen having been partially dried, 

 so as to show the bones through the skin. 



4. DOGANLA.. 

 Head large, broad behind. Muzzle elongate, conical. 

 Lips thick. Dorsal shield flexible on the edge. Ribs 8-t^, 

 not united into a solid disk until late in life. Sternum 

 narrow at each end ; callosities 2, small, only attached to 

 the outer processes of the front lateral sternal bones. Epi- 

 sternal lines forming a V, but not contiguous at their base. 

 Tail very short. 



Dogania, Gray, Cat. Tort. B.M. 49 (1844). 



Gymnopus, sp., Bum. ly Bib. Erp. Gen. ii. 497 ; Cat. Meth. 



R. 21. 

 Amyda, sp., Schweiyyer. 

 Amyda, Fitc. Syst. Rept. 30 (1843). 

 Aspidonectes, sp., Jf'ayler, Syst. lo4. , 



1. Dogania subplana. The Dogania. Tab. XXXIII. 



Shell flattened ; disk varied with yellow, with brown 

 venniculations. Head yellow-varied ; sternal tubercles 2, 

 small, lateral. 



Dogania subplana, Gray, Cat. Tort. B.M. 49. 

 Trionyx subplanus, Geoff'. Ann. Mus. xiv. 11. t. 5. f. 2. 

 Schweiy. Prod. 289. 



