PLATE XXIT. 



Fig. Pagk. 



1. PJiolidophorus purbeclcensis, Davies; imperfect fish, right lateral view, 



one-and-a-half times nat. size, with some anterior flank-scales I 1 a) 

 and caudal scales (W>), outer view, enlarged three times. — Lower 

 Purbeck Beds; Isle of Portland. The type specimen. Damon 

 Collection (B. M. no. P. 6171). pop., preoperculum ; scl., supra- 

 clavicle. 108. 



2. Ditto; nearly complete fish, right lateral view, one-and-a-half times nat. 



size, with foremost anal fin-ray and fulcra (2 a) enlarged four times. 

 -Ibid. British Museum, no. P. 8378. 108. 



3. Ditto; small fish, right lateral view, twice nat. size. — Lower Purbeck 



Beds; Teffont, Vale of Wardour, Wiltshire, iop., interoperculum ; 

 op., upper part of operculum ; sop., suboperculum. P. 13. Brodie 

 Collection (B. M, no. P. 7640). 108. 



L Pholidophonis brevis, Davies ; imperfect fish, left lateral view, one-and-a- 

 half times nat. size. — Upper Purbeck Beds ; Lpway, near Weymouth. 

 The type specimen. Egerton Collection (B. M. no. 1'. 107*1). 1 1". 



•"). Ditto; head and anterior abdominal rearion, much broken by crushing, 

 one-and-a-half times nat. size, with some tiank-scales (~><C, inner 

 view, enlarged twice. — Ibid. Enniskillen Collection (B. M. no. 

 P. 3607). HO. 



6. Pholidojpliorus limbatus, Agassi/,; front of anal fin with fulcra, four times 



nat. size, for comparison with fig. 2 ft. — Lower Lias; Lyme Regis, 

 Dorset. Egerton Collection (B. M. no. P. 1047 A). 



7. Geramxirus macrocephalus, Egerton; distorted fish, loft lateral view, wirh 



counterpart of head (7ft), two-and-a-half times nat. size, and three 

 caudal ridge-scales (7 b), enlarged ten times. — .Middle Purbeck Beds; 

 Dinton, Vale of Wardour, Wiltshire. The type specimen. Brodie 

 Collection. (B. M. no. P. 7639). <■/., clavicle; Jr., frontal; pa., 

 parietal; qu., quadrate ; scl., supraclavicle. 111. 



8. Pleuropholis, sp. ; immature 6sh, fight lateral view, three times nar. size, 



with dorsal fin (8ft) enlarged five times. — Lower Purbeck Beds; 

 Teffont, Vale of Wardour, Wiltshire. Rev. W. R. Andrews" Collec- 

 tion (B. M. no. P. 9846). 117. 



