LIST OF PLATES. 



PACE 



Tab. I. and II. Chersina angulata ... 15 



Tab. III. Upper fig. Testudo stellata, middle aged . 12 



Lower fig. Testudo pardalis, young . ib. 



Tab. IV. Emys vulgaris, young ... 24 



Tab. V. Emys tecta .... 23 



Tab VI. _/! 1. Kinostemon odoratum . . 35 



f. 2. Chelodina longicollis . . 39 



f. 3. Hydraspis subrufa ... 39 



f. 4. Kinosternon Pennsylvanicum . , . 35 



Tab. YW.f. 1. Kinosternon scorpioides var. acuta . 34 



f. 2. Chelonia imbricata ... 52 



f. 3. Emys crassicollis . . . 21 



The figures on the shields of the three last plates represent the 

 relative parts in the diiferent species. 



1. The vertebral shields, scutella vertebralia, 



2. The costal shields, scutella costalia. 



3. The marginal shields, scutella marginalia, seen on the 



upper and under sides of the shell ; in the figures, the 

 small figure on the side represents the first, second, third, 

 &c. plate, as 2' the first costal plate, and so on. 



3 a. The nuchal marginal plate, scutelliim nuchale. 



3 6. The caudal marginal shields, scutella caudalia. 



4. The axillary shields, scutella axillaria. 



5. The inguinal shields, scutella inguinale. 



6. The gular shields, scutella gularia. 



6 a. The intergular shield, scutellum intergulare. 



7. The humeral shields, scutella humeralia. 



8. The pectoral shields, scutella pectoralia. 



9. The abdominal shields, scutella abdominalia. 



10. The femoral shields, scutella femoralia. 



11. The anal shields, scutella analia. 



12. The additional plates of the Marine Turtles, scutella 



later alia. 



Tab. VIII. and IX. Emys dentata ... 20 



Tab. X. Trionyx Hurum, young ... 47 



