INDEX. 133 



ICHTHYOSAURUS, Pre-frontal, Part in, p. 99, PL XXIV, fig. 1. 



Premaxillary, Part in, p. 100, Pis. XXIII— XXV, fig. 1 ; XXIX, fig. 1. 

 Prespbenoid, Part III, p. 96, PL XXV, fig. 1. 

 ,, Prosquamosal, Part in, p, 101, PL XXIV, fig. 1. 



Pterygoid, Part in, p. 100, PL XXV, fig. 1 ; XXVI, fig. 1. 



Pterygomalar, Part in, p. 102, PL XXV, fig. 1. 



Scapula, Part in, p. 104, PL XXVIII, fig. 4 ; XXX, fig 3 ; XXXI, figs. 3, 4. 



Sclerotic plates, Part in, p. 103, PL XXIV, figs. 1, 2; XXVIII, figs. 1, 2, 3 ; XXIX, 



fig. 1 ; XXXI, figs. 2, 5 ; XXXII, fig. 7. 

 Skull, Part III, p. 92, PL XXIII, fig. 1 ; XXIV, figs. 1,2; XXV, fig. 1 ; XXVI, figs. 

 1—7, XXVII, fig. 1 ; XXVIII, figs. 1, 2, 3 ; XXIX, figs. 1, 2 ; XXX, figs. 1,3; 



XXXI, figs. 1, 2, 5 ; XXXII, figs. 1, 2, 7, 8. 

 Tympanic, Part in, p. 95, PL XXVI, fig. 1. 



Vertebrae, Part in, p. 87, PL XXI ; XXII ; XXIII, figs. 2—6 ; XXVI, fig. 8 ; XXVII, 

 figs. 2—5 ; XXVIII, fig. 1 ; XXIX, fig. 2 ; XXX, figs. 1,3; XXXI, figs. 1, 3—6 ; 



XXXII, figs. 1, 7, 10; XXXIII, figs. 2—6. 

 „ Zygapopbyses, Part in, p. 88, PL XXI, fig. 6. 



Aspect of, Part in, pp. 86, 87. 



Generation of, Part in, p. 86, PL XXVIII, fig. 1 ; XXXII, fig. 10. 



Osteological summary, Part in, pp. 106 — 9. 



Species of, Part in, pp. 109—127, Pis. XXII— XXXIII. 



„ acutirostris, Owen, Part, in, p. 121, PL XXVIII, fig. 2. 



„ breviceps, Owen, Part in, p. 109, PL XXIX. 



„ brachyspondylus, Owen, Part in, p. 127, PL XXXIII, figs. 3 — 6. 



„ communis, Conybeare, Part in, p. Ill, PL XXIV, figs. 2, 5, 5'; XXVIII, fig. 1 ; XXX, 



figs. 3, 4, 5. 



intermedius, Conybeare, Part in, p. 113, PL XXIV, fig. 7 ; XXX, figs. 1, 2. 



latifrons, Kbnig, Part in, p. 119, PL XXIII, fig. 6 ; XXVII, fig. 1. 

 „ latimanus, Owen, Part in, p. 126, PL XXXIII, figs. 2, 7. 



lonchiodon, Owen, Part in, p. 117, PL XXIV, figs. 6, 6'; XXXI, figs. 4—7. 



longifrons, Owen, Part in, p. 118; PL XXIII, figs. 1—5 ; XXIV, fig. 1 ; XXV, fig. 1 ; 

 XXVI, fig. 1 ; XXVII, figs. 2-5. 



longirostris, Owen, Part in, p. 124, PL XXV, fig. 2 ; XXVIII, fig. 3 ; XXXII, figs. 7, 8, 9. 



platyodoo, Conybeare, Part in, p. 115, PL XXIV, figs. 4, 4' ; XXXI, figs. 1—3. 



tenuirostris, Conybeare, Part in, p. 122, PL XXIV, fig. 8 ; XXV, fig. 3 ; XXXII, figs. 1 — 6. 

 PLESIOSAUEUS dolicbodeirus, Conybeare, Part in, pp. 1-11, Pis. I— IV. 



„ „ Caudal vertebrae, Part in, p. 7, PL I, fig. 1 ; IV, figs. 3—9. 



,, ,, Cervical vertebrae, Part in, p. 3, PL III, figs. 1, 4 — 6. 



,, „ Cranial characters, Part in, p. 8, PL II, fig. 1 ; III, figs. 1 — 3. 



„ ,, Dorsal vertebrae, Part in, p. 6, PL I, fig. 1 ; IV, figs. 1, 2. 



„ ,, Pectoral and pelvic limbs, Part in, p. 11, PL I, figs. 2, 3. 



,, „ Sacrum, Part in, p. 7, PL I, fig. 1. 



„ „ Vertebral characters, Part in, p. 3, PL III ; IV. 



