Cretaceous and Tertiary Cirripedcs. 205 



l)/cnolep(tsfulla.v, Darwin, sp. 

 Upper Seuonian, B. 7nucronufa-zone : Norwich, Norfolk (tigs. 10, 



U|)per Seuonian, B. mucronata-zone (upper part) : Trimingham, 

 Norfolk (Hg. 12). 



Fir/. 10. Ho>trum. Norwich Castle Museum (Fitch Colin.), 2156 c. 



I'i;/. 11. Scutum. Brit. Mus. (Nat. Hist.), I. 144GG. 



Fuj. 1-2. Upper latus. li. M. Hrvdone Colin. Figd. II. Woodward, 



Geol. Mag. 1906, p. 344, tig. 21. 

 Fiff. 13. Terguui. Norwich Castle Mu.seum (Fitch Colin.), 21-^3 c. The 



original tergum (paratype) of Darwin, 18ol, Pal. See. Monogr. 



Foss. Lepadida), p. 70, pi. iv. fig. 8 b. 

 Fir/. 14. Carina. Brit. Mus. (Nat. Hist), I. 14467. 

 All figures X 2 diam. 



Pycnolepas riyidus, J. de C. Sowerby, sp. 

 Albiau, Gault : Folkestone, Kent. 



Fig. 15. Rostrum. "^ 



Fiij. 16. Scutum. j 



Fiy. 17. Upper latus. y a, outer view ; b, inner view. 



Fig. 18. Tergum. 



Fiy. 19. Carina. 



Figs. 15, 16, 18, 19, X 2 diam. ; 6g. 17, X 4 diam. 



Plate VIII. 

 Pycnolepas riyidus, J. de C. Sowerby, sp. 

 Albian, Gault : Folkestone, Kent. 



Fig. 1 . Peduncular plate. Outer view. 



Fig. 2. „ „ Inner view of an incomplete example, showing 



the median basal socket. 

 Fig. 3. „ „ Inner basal view of another example. 



AU figures X 8 diam. 



Cenomanian, Chalk Marl : near Cambridge. 



Fiy. 4. Scutum. Left valve showing very prominent apico-basal ridge, 

 which projects beyond the basi-lateral angle. X 4 diam. 



Pycnolepas fidlax, Darwin, sp. 



Upper Senonian, M. cor-anguinum-zone : Quidhampton, nr. 

 Salisbury, Wilts. 



Fiy. 5. ? Rostrum, a, side view ; 6, outer view. X 2 diam. Dr. H. P. 

 Blackmore's Colin. 



Pycnolepas briinnichi, Withers. 

 Danian, Bryozoa Limestone : Faxe, Denmark. 



Fig. 6. Scutum. Left valve, with very broad apico-basal ridge. 

 X 4 diam. 



