PLATE III. 



Fig. 



1. Portunites incerta (p. 21), shomng on the left side the posterior leg turned over the 

 back, and resting against tlie longitudinal elevation on the branchial region. 

 In Mr. WethereU's collection. Sheppey. 



i. Portunites incerta, larger specimen, showing the orbits, &c. Mr. WethereU's collection. 

 Sheppey. 



3. Under side of Portunites incerta, showing the claws and male abdomen. Mr. 



Bowerbank's collection. Sheppey. 



4, 5. Upper and under side of a small pyritic specimen of Portunites iiicerta. Sheppey. 



6. (Edi.soma umhiguum (p. 22). Mr. Bowerbank's collection. Sheppey. 



7. Front Aiew of the same, showing the orbits. 



8. Campylostoma matutiforme (p. 23). Mr. WethereU's collection. Sheppey. 



9. Large specimen of Campylodoma matutiforme, with hypertrophied lateral spine. 



Mr. WethereU's coUcction. Sheppey. 

 10. Specimen of the same species, showing the inner stalk of the external footjaws. 

 Mr. Bowerbank's collection. 



