PLATE XXXIX. 



Fig. Page. 



1. Coprolite usually ascril)ed to Macropovia, nat. size. — Chalk; Kent. 



Harford Collection (B. M. uo. P. 5629). ]80. 



2. Part of a similar coprolite, nat. size. — Chalk ; near Lewes. Mantell 



Collection (B. M. no. 4:^5). 180. 



o. Macropoma precursor, sp. nov. ; portion of trunk, nat. size, with (3 a) 

 three scales enlarged to five-halves nat. size. — Base of zone of 

 Holdsfer Kiih(j]ohosnii ; Burhara, Kent. G. E. Dil)ley C^ollection 

 (B. M. no. P. 10810). <]o'., anterior dorsal fin ; /., scales of lateral 

 line. ^ 182. 



4. Fjlnsmodpcfrs ivillcfti, Newton ; right side view of head and portion of 



trunk, nat. size, with (4 a) some ring- vertebrae and (4 h) the distal 

 end of the dorsal fin-spine, both enlarged three times. — Zone of 

 Hol((sf('r .^nhfjlohosiift ; near licwes. Sedgwick Museum, Cambridge. 

 d., dorsal fin-spine ; wd., mandi1)ular dental plate ; jirt., pectoral 

 arch; j>/., palatine dental plate ; v., vomerine dental plate. 191. 



5. Ditto; dorsal fin-spine, three-halves nat. size. — Chalk; Kent. Harford 



Collection (B. M. no. P. 5024). 192. 



G. EJai^modecicfi sp. ; dorsal fin-spine above portion of pectoral arch, nat. 

 size., with (0 a) portion of base of spine enlarged three times. — 

 Zone of lldhistcr sidxjlohosiift ; Clayton, Sussex. AVillett Collection 

 no. 98, Brighton Museum. 192. 



