PLATE XIII. 
Fig. _ Page 
1, 2. Acrodus Tceuperinus (Murchison & Strickland); two teeth, 
outer and inner aspects, twice nat. size.—Keuper : Pen- 
dock, Worcestershire. [P. 2764.] 281 
3. Acrodus nobilis , Agassiz ; dentition, coronal aspect.—L. 
Lias ; Lyme Begis. o. Median series of teeth, i.-v. 
Successive lateral series, a. Misplaced tooth. 
[P. 2736.] 284 
4. Ditto ; group of naturally arranged teeth, series ii.-vi., 
coronal aspect.—Ibid. [P. 2142.] 285 
5. Acrodus leiodus, A. S. Woodward; anterior tooth, coronal 
aspect, twice nat. size.— Gt. Oolite; Minchinhampton, 
Gloucestershire. [P. 5874.] 295 
6. Ditto; lateral tooth, outer aspect, twice nat. size.— 
Ibid. [P. 5873.] 295 
7. Ditto; lateral tooth, coronal aspect, three times nat. size. 
—Stonesfield Slate : Stonesfield. [P. 2753.] 295 
8. 8 a. Acrodus leiopleurus, Agassiz ; tooth, inner and coronal 
aspects, twice nat. size.—Gt. Oolite ; Minchinhampton. 
[P. 5875.] 296 
9. 9 a. Acrodus Jiiruclo, Agassiz; lateral tooth, inner and 
coronal aspects, twice nat. size.—Wealden ; Telham, 
Sussex. [P. 4994.] 296 
10. Acrodus orncitus , sp. nov.; tooth, coronal aspect, three 
times nat. size.—"Wealden; Brixton, I. of Wight. 
[P. 5275.] 296 
11, 12. Cestracion sidcatus, sp. nov.; two teeth, coronal aspect. 
—II. Greensand ; Maidstone. [25858.] 334 
