﻿PLATE II. 



Fig, ^ ^ Page 



1. Myriacanthus paradoxus, Ag. ; dentition, anterior and 



oral aspect. — Lower Lias ; Lyme Regis, md. Mandi- 

 bular teeth. pl> Palatine tooth, ps. Presymphysial 

 tooth, v. Vomerine tooth, x. Supplementary upper 

 tooth or accidental dismemberment of vomerine tooth. 



[P. 4664.] 47 



2, 2 a, 2 l. Ditto ; dentition, superior aspect, transverse sec- 



tion of presymphysial tooth («), and anterior upper 

 tooth (6), the last being twice nat. size. — Ibid. d. 

 Dermal plates. Other letters as above. [P. 151.] 48 



3. Ditto ; left mandibular tooth, inner aspect. — Ibid. 



[P. 477.] 46 



4, 4 a, 4 6. Myriacanthus gramdatus, Ag. ; dentition, ante- 



rior and oral aspect, and presymphysial tooth in side 

 view (a) and transverse section (6), the last three times 

 nat. size. — Ibid. t. Dermal tubercles. Other letters 

 as above. [P. 4575.] 49 



