PLATE VIII. 



(All the figures are of the natural size except figs, 116, lie.) 



Figs. 1 a, 1 6. — Emmelezoe elliptica, M'Coy. 1 a, left valve ; I b, end view. 

 Cambridge Mus. (Page 69.) 



Figs. 2 a, 2 b.—E. Maccoyiana, T. R. J. & H. W. 2 a, right valve ; 2 b, 

 end view. Mus. Pract. Geol. (Page 71.) 



Figs. 3 a, 3 6. — E. crassistriata, T. R. J. & H. W. 3 a, right valve ; 3 b, end 

 view. Mus. Pract. Geol. (Page 70.) 



Figs. 4 a, 4 6. — Ceratiocaris solenoides, M'Coy. 4 a, dorsal aspect of an imper- 

 fect and partly embedded carapace ; 4 b, end view of one of the valves. Cambridge 

 Mus. (Page 53.) 



Fig. 5. — The same. Right valve partly embedded in the matrix. Cambridge 

 Mus. (Page 53.) 



Fig. 6 a, 6 b. — G. gobiiformis, T. R. J. & H. W. 6 a, right valve ; 6 b, end 

 view. British Mus. (Page 54.) 



Figs. la, lb. — G. solenoides, M'Coy. Original of fig. 5 in 'Brit. Pal. Foss.,' 

 1855. 7 a, right valve ; 7 b, end view. Cambridge Mus. (Page 53.) 



Figs. 8 a, 8 b. — The same. Short variety. 8 a, left valve, imperfect; 8 b, end 

 view. Cambridge Mus. (Page 53.) 



Figs. 9 a, 9 b. — The same. Short variety. 9 a, left valve, partly embedded ; 

 9 b, end view. Mus. Pract. Geol. (Page 53.) 



Figs. 10 a, 10b. — The same. Long form, like 7 a. 10 a, left valve; 10/;, end 

 view. Cambridge Mus. (Page 53.) 



Figs. 11 a, 11 b, 11 c. — C. gobiiformis, T. R. J. & H. W. 11 a, right valve, natural 

 size; 116, the same, magnified 2 diam. ; lie, end view, X 2 diam. Cambridge 

 Mus. (Page 54.) 



Fig. 12. — G. laxa, T. R. J. & H. W. Carapace, abdomen, and caudal appen- 

 dages, complete. (A piece of the delicate striation is shown, magnified 25 diam., 

 in Plate X, fig. 12.) British Mus. (Page 56.) 



