PLATE XIV. 



Fig. Page. 



1. Micro.don radiatiis, Agassiz; nearly complete fish, nat. size, with dorsal 



(1 a) and ventral (lb) ridge-scale enlarged three times. — Middle Pur- 

 beck Beds; Swanage, Dorset. Dorset County Museum, Dorchester. 

 x., problematical bone at hinder end of abdominal region. 59. 



2. Ditto ; imperfect fish with distorted tail, nat. size. — Ibid. Cunnington 



Collection (B. M. no, 46333). c, displaced caudal fin-rays; cl., 

 clavicle ; dr., ventral ridge-scale with double articulation ; fr., frontal 

 bone ; me., mesethinoid ; ph., pelvic fin ; vo., vomer. 59. 



3. Ditto ; head and anterior abdominal region, nat. size. — Ibid. Dorset 



County Museum, Dorchester. ag., angular ; d., dentary ; hm., dis- 

 placed hyoinandibular ; v., two expanded anterior ribs ; spl., splenial. 61. 



4. Ditto ; left parietal boue (drawn upside down), showing hinder prominence 



(x.), twice nat. size. — Ibid. Egerton Collection (B. M. no. P. 1627 a). 60. 



5. Ditto ; vomerine dentition, three times nat. size. — Ibid. Museum of 



Practical Geology, London, no. 28359. 62. 



6. Ditto; right dentary bone, five times nat. size. — Ibid. Museum of 



Practical Geology, London, no. 28352. 61. 



7. Ditto; splenials with dentition, oral view, with some lateral vomerine 



teeth to the left, three times nat. size. — Ibid. British Museum, 

 no. P. 5592. 62. 



8. Ditto ; right splenial dentition, oral view, three times nat. size. — Ibid. 



Egerton Collection (B. M. no. P. 1627 a). 62. 



9. Ditto; epihyal (eph.) and ceratohyal (ch.) bones, five times nat. size. — 



Ibid. Cunnington Collection (B. M. no. 28443). 62. 



10. Ditto; left hyomandibular (hm.), outer view, with remains of operculum 

 (op.) partially overlapping the supraclavicle (scl.), twice nat. size. — 

 Ibid. Egerton Collection (B. M. no P. 1627 b). 61. 



