252 



DESCRIPTION OF THE SPECIES. 



[Ill Zoological arrangement.] 



1. BYTHOCYPRIS WINWOODIANA, sp. 11. 



PI. v., figs. 1 a, b, c. 



Eeniform, nearly symmetrical, sub-convex, smooth ; left valve 

 overlapping the right on the ventral margin. Edge view, 

 lanceolate ; end view, compressed ovate. 



Named after the Rev. H. H. Winwood, M.A., F.G.S., who 

 courteously favoured us with some of the material from Midford. 



One specimen ; Blue Fullers-earth Clay, Midford. 



2. MACROCYPRIS HORATIANA, sp. %. 



PI. v., figs. 2 a, h, c. 



Subreniform, elongate, narrower behind than in front, with a 

 flattening at the antero-dorsal margin. Not very convex ; 

 surface perfectly smooth ; edge view, lanceolate ; end view, 

 narrow-ovate. 



Named after Mr. Horace B. Woodward, F.G.S., to whom we 

 are indebted for some of the fossil material from Midford. 



This species is near 31. decora, G. S. Brady, Challenger Report^ 

 p. 44, pi. 1, fig. 3, but it is shorter, blunter, and less arcuate. 



Five examples ; Blue Fullers-earth Clay, Midford. 



3. MACROCYPRIS TERR^FULLONIC^,* sp. 71. 



PI. v., figs. 3 a, b, c. 



Subreniform, posterior end narrower than the anterior. 

 Ventral margin nearly straight. Well-curved on the dorsal 

 margin. Surface smooth. Edge view, lanceolate; end view, 

 Droadly ovate. 



Four examples ; Blue Fullers-earth Clay, Midford. 



* Of the Fullers-earth. 



