43 



CONCENTRIC TORTOISE. 



Testudo Concentrica. T. testa avata, subdepressa subcarinata 



flyza, scuteflis zonisfusch concentricis. 

 Tortoise with subdepressed, subcarinated, oral, yellow shell, 



with the scutella marked by concentric brown zones. 

 Testudo Terrapin. T. testa sttpera depressa, scutellis dorsi ante- 



rioribus carinatis, margine lateral! co&tato, postice crenato. 



Schoepf. Test. p. 6.t. 15. 

 Testudo palustris ? Lin. Syst. Nat. Gmel. p. 1041. 



THE shell of this Tortoise is of a flatter form 

 than in many others, and, in the larger specimens, 

 nearly smooth, but in those of a less advanced age 

 is often marked pretty strongly by several concen- 

 tric furrows : the middle range of pieces com- 

 posing the disk are five in number, more elevated 

 than the side-pieces, and mostly hexagonal, pro- 

 jecting behind into au obtuse carina : the side 

 pieces are four on each side, and are pentangular: 

 all are of a brownish chesnut-colour marked with 

 several paler zones or lines; or in other words, it 

 might be said, that the ground colour is pale, 

 with brown zones and centres : the under or lower 

 shell is of a yellowish \vhite, with a dusky or 

 blackish streak continued round each piece, at no 

 great distance from its edge or commissure: the 

 sides of each of the marginal pieces are also marked 

 in a similar manner : the hind part of the margin 

 of the shell appears slightly crenated or notched 

 with somewhat distant undulations, though this is 

 merely owing to the projecting and rounded junc- 

 tures of the marginal pieces on that part, and not 



