PLATE XII. 
Fig. Page 
1. Pholidophorus bechei , Agassiz ; squamation and opercular 
bones of right side.—Lower Lias ; Lyme Regis. 
[39858.] 451 
2. Ditto ; small individual, left lateral aspect.—Ibid. 
[P. 3589 b.] 452 
3. Pholidophorus pachysomus , Egerton ; trunk, left lateral 
aspect.—Ibid. [28281.] 453 
4. Pholidophorus hartmcinni, Egerton ; trunk, right lateral 
aspect.—Upper Lias : Ohmden. [P. 605.] 466 
5. Ditto ; opercular apparatus and jaws, left lateral aspect.— 
L T pper Lias ; Boll. hr. Branchiostegal rays. d. Den¬ 
tary. i.op. Interoperculum, mx. Maxilla, op. Oper¬ 
culum. q. Quadrate. s.mx. Supramaxillaries. s.op. 
Suboperculum. [19653 a.] 467 
6. Pholidophorus crenulatus , Egerton ; right lateral aspect.— 
Lower Lias ; Lyme Regis. [P. 1046 a.] 463 
7. Pholidophorus limbatus , Agassiz ; left lateral aspect.— 
Ibid. [P. 1047.] 465 
