PLATE XVIII. 
Outlines of pectoral and pelvic girdles of different plesiosaurs. 
Fig. 1, pectoral girdle of Cryptoclidus oxoniensis, after Andrews. 
Fig. 2, pelvic girdle of same, after Andrews. 
Fig. 3, pelvic girdle of Czmoliasaurus sf, from a photograph furnished by 
Prof. Fraas. 
Fig.-4, pelvic girdle of Czmoliasaurus trochanterius, after Lydekker. 
Fig. 5, pectoral girdle of Plestosaurus sp, from photograph from Prof. Fraas. 
Fig. 6, pectoral girdle of W/urenosaurus, after Andrews. 
Fig. 7, pelvic girdle of same, after Andrews. 
Fig. 8, pelvic girdle of same, from the side, after Andrews. 
tc, episternum; c/, clavicle; sc, scapula; co, coracoid; fu, pubis; zs, ischium. 
