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Show 204 MR. RUDOLF MARTIN ON A FOSSIL [Mar. 3, femur (rostral and caudal aspect) at my disposal, 011 which the following description is based. Evidently this femur (text-figs. 30, 31) belonged to a large struthious bird, as it differs little from the same bone of a modern Ostrich. The size of the femur is somewhat larger than that of the same bone of recent Ostriches at my disposal, but very probably there would be no difference between a large specimen of Struthio camelu.s and the fossil. Text-fig. 30. Text-fig. 31. Text-fig. 30.- Right femur of Struthio karatJ/eodoris. Caudal view. ^ nat. size. Text-fig. 31.- „ „ „ „ Rostral view. £ nat. size. The following table gives the results of a comparison between the fossil in question and that of a medium-sized modern ostrich:- Length of Length of caput Smallest Width of Species. femur. ' + eollum. width. trochlea. Str. karatheodoris 36'0 10*5 5*5 12 4 mm. Str. camelus....... 31'2 10 0 5*2 11-5 mm. The measurements of the caput + collum have been taken |