PLATE XI. 



Fig. Paoe. 



1. Lepidotus mantelll, Agassiz; anterior end of vomer (v.) and left 



pterygopalatine (pt.) in cross-section, anterior view, to show 

 successional teeth in sockets, nat. size. — Wealden ; Hastings. 

 Beckles Collection (B. M. no. P. 6342). 42. 



2. Ditto; vomer, oral, anterior (2a), and right lateral (2 b) views, nat. 



size, with three anterior teeth (2 c), enlarged twice to show 

 mammilliform apex. — Ibid. Beckles Collection (B. M. no.P. 6363). 42. 



3. Ditto ; right pterygo-palatine, oral, outer (3 ft), and inner (3 b) views, 



nat. size; s., successional teeth in sockets. — Ibid. Dawson 

 Collection (B. M. no. P. 4917). 41. 



4. Ditto; vomerine (v.) and right pterygo-palatine (pit.) dentition, oral 



view, nat. size, with two teeth in side view (4 a, 4 b), enlarged 

 twice to show wrinkled gano-dentine. — Wealden ; Isle of "Wight. 

 British Museum, no. 47504. 43. 



5. Ditto ; imperfect right splenial (spl.) and dentary (<L), oral, outer 



(5 a), and inner (5 b) views, showing successional teeth (s.) in 

 broken section of bone, nat. size. — Wealden; Tilgate Forest. 

 Mantell Collection, no. 2326. 42. 



6. Ditto ; three teeth of right dentary bone, outer view, three times 



nat. size. — Wealden ; Hastings. J. B. Lee Collection (B. M. no. 



P. 4995). 42. 



7. Ditto ; middle flank-scale, outer view, nat. size. — Ibid. Dawson 



Collection (B. M. no. P. 4916). 47. 



8. Ditto ; middle flank-scale, inner view, nat. size. — Wealden ; Tilgate 



Forest. Mantell Collection, no. 2397. 47. 



9, 10. Ditto ; upper flank-scales of abdominal region, outer view, and 

 second in inner view (10 ft), nat. size. — Ibid. Mantell Collection, 

 nos. 3036, 3092. 47. 



11, 12. Ditto; lower flank-scales of abdominal region, outer view and inner 

 view (11a, 12 ft), nat. size. — Ibid. Mantell Collection, nos. 3089, 

 3045. 47. 



13. Ditto; caudal scale, outer and inner view (13a), nat. size. — Ibid. 



Mantell Collection (B. M. no. 26009). 47. 



14. Ditto ; caudal scale of lateral line, outer and inner view (14 a), nat. 



size. — Ibid. Mantell Collection. 47. 



