284 S. W. WILLISTON NEW GENERA OF PERMIAN VERTEBRATES 



Plate 14. — Cacojjs aspitlephoriis Will. Figure 1, left tibia, fi»om in front; 

 figure 2, the same, from behind ; figure 3, the same, from within ; figure 4. 

 the same, from without ; figure 5, left fibula, from behind ; figure 6, the 

 same, from in front; a, upper extremity ; figure 7, left radius, from behind ; 

 figure 8, the same, from in front; figure 9, the same, from within; figure 

 10, left ulna, from in front; figure 11, Dissoroplius multicinctus, atlas; a, 

 from behind; h. from in front ; c, from the side; d, from below; figure 12, 

 anterior hypocentrum, twice natural size. 



Plate 15. — Figure 1. genus new, right humerus; a, from in front; h, from be- 

 hind ; figure 2, Crossotelos Case, left humerus, reversed, from behind ; (/. 

 the same, from in front; h, the same, distal end; c, the same, proximal 

 end; figure 3, Crossotelos, right humerus of another specimen, reversed, 

 from behind ; figure 4, genus new, right humerus ; a, from in front ; &, from 

 behind ; c, proximal end ; figure 5. genus new. left humerus, from behind ; 

 figure 6, TrhnerorlwcMs Cope, left humerus; a, from behind; ft, from in 

 front ; figure 7, Diplocaiilus Cope, right humerus, from behind. 



Plate 16. — DesmospoiidylKS Will. Figure 1, D. anomalus Will., right humerus; 

 u, from side; J), from in front; figure 2, D. anomalus, tibia; figure 3, T). 

 anomalus, radius; figure 4, D. anomalus, right femur, from behind; figure 

 5, Desmospondyl us, sp. n., left femur, from in front, natural size; figure 0. 

 D. anomalus, fibula ; figure 7, D. anomalus, left ilium, from without ; figure 

 8, D. anomalus, vertebra, from in front; figure 9, D. anomalus, centrum, 

 from behind ; figure 10, the same, from in front ; figure 11, the same, from 

 above; figure 12, the same, from the left side; all figures, save 5, twice 

 natural size. 



1*late 17. — Cacops aspidepliorus Will. Mounted skeleton ; specimen number 

 647; one-third natural size. 



