244 



Fig. 76. 



Fig. 76. — Different parts of the skeleton of Ichthyosaurus intermedius, 

 drawn to the same scale. A, the skull; B, the fore limb:—//, 

 humerus ; R, radius ; U, ulna ; r. i. v., radiale. intermeduim, ulnare ; 

 Cp, carpalia ; 1, 2, 3, 4, S, digits; m.r. m.u. radial and ulnar marginal 

 ossicles. — C, a dorsal vertebra, with the ribs (7?) and ventral ossifi- 

 cations ( V. O). — D, the hind limb : F, femur ; T, tibia ; FO, fibula ; 

 t, i,f, tibiale, intermedium, fibulare ; 7s, tarsalia ; ilif, metatarsalia ; 

 Ph, phalanges ; m, tl\ tibial marginal ossicles. — E, the pectoral arch, 

 seen from the ventral side ; F, the same aspect of the pelvic arch. 



