G8 



ADDITIONS AND CORRECTIONS. 



Page 7, line 7, add — and Dr. Forskal appears to have con- 

 sidered this concavity as the characteristic mark of the 

 female; for in his description of Testudo, n. i. p. 12, he 

 observes, Mas pectore suhtus piano, feomella concavo. 



Page 8, last line, add — Dr. Wagler appears to have observed 

 the same fact in Testudo marginata, as from the character of 

 the hinder part of the sternum being mobile, he has separated 

 this species from the other Tortoises as a genus under the 

 name of Cherseus. 



Test. Hercules, d^^d. — instead of Test, planata, Gmel. — Test. 

 71. 33, (without any specific name,) Gmelin, Syst. Nat i. 

 1045. 



Page 1 1. Test, marginata, add — Cherseus marginatus, 

 Wagler, Icon. Amph. t. 25, ined. 



Page 11, after 6 add — n. 6*. Testudo sulcata, (^Grooved 

 tortoise.) Testa oblonga hemispherica subdepressa. Scutellis 

 subplanis sulcatis, flavis, scutello nuchali nullo, sterno antice 

 posticeque bifido. 



Test, sulcata. Miller Cym. Physica, t. 26, cop. Test, 

 calcarata, Schn. Abhand, t. and Bechst. Lacep. t. 



Ruppel Mus, Franc. 



Chersina calcarata part, Merrem. 



Test, radiata, fi senegalensis noh. Syn. Rept. i. 11 ? 



Habitat in Africa Centrali, Abyssinia. Ruppel, v. t. Mus. 

 Francf. Senegal, v. t. Mus. Paris. 



Shell oblong, hemispherical, rather depressed and flattened 

 on the vertebral line. The front margin over the front feet 

 strongly reflexed and deeply 3 -toothed on each side, with a 

 triangular nick for the head. The lateral margin slightly 

 keeled, the hinder lateral one equally reflexed, with four deep 

 indentations. The caudal plate very broad, slightly inflexed ; 

 the shields dirty yellow, deeply and irregularly grooved, with 

 some distant radiating ridges, to the angles. The areola 

 small, about half an inch wide by one-third long, placed in the 

 centre of the upper edge of the dorsal, and in the hinder angle 

 of the marginal plates. The sternum flattish, yellow, first pair 

 of sternal plates small, deeply lobed in front, third pair very short 

 and broad, the hinder end deeply and rather acutely lobed. 



