43 



CONCENTRIC TORTOISE. 



Testudo Concentrica. T. testa ovata, subdepressa suhcarinata 



Jiava^ scutellis zoni&fuscis concent ricis. 

 Tortoise with subdepressecl, subcarinated, oval, yellow shell, 



with the scuteila marked by concentric brown zones. 

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



rioribus carinatisy jnargine laterali costato, postice crenato. 



Sckoepf. Test. p. 64. t, 15. 

 Testudo palustris ? Lin. S]/st. 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 an 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 white, 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 



