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TESTUDO J3EADNELL1. 285 
Testudo beadnelli, sp. nov. 
[Text-fig. 91.] 
Type Specimen . — A shell of which the carapace is somewhat incomplete, but the 
plastron is in excellent preservation (text-fig. 91) ; Geological Museum, Cairo. 
The shell upon which this species is founded is the only one of this form that has 
been found. It differs so considerably from all the shells of T. ammon that its 
separation from that species seems fully justified. The chief of these differences 
Text-fig. 91. 
Plastron of Testudo headnelli. 
aid., abdominal shield ; an., anal shield ; Ent., entoplastral bone ; Ej^.iy., epiplastral bone ; fem., femoral 
shield; g., gular shield; h., humeral shield; Hy.p., hyoplastral bone; Hyp.p., hypoplastral bone; 
pect., pectoral shield ; Xi.p., xiphiplastral bone. About I nat. size. 
are : — (1 The areas covered by the vertebral shields are very slightly swollen and are 
scarcely at all marked off by any depression from the costals ; (2) the carapace, as a 
whole, is less widened out and turned up in front, and it is considerably lower in 
proportion to its width ; (3) the pygal region is less convex and does not extend so 
much below the rest of the margin. Otherwise in the arrangement of the bones and 
shields the two species are similar; the nuchal shield is well marked. 
