PLATE III. 



Fig. 



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



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

 In Mr. Wetherell's collection. Sheppey. 



2. Portunites incerta, larger specimen, showing the orbits, &c. Mr. Wetherell'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 incerta. Sheppey. 



6. (Edisoma ambiguum (p. 22). Mr. Bowerbank's collection. Sheppey. 



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



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



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



Mr. Wetherell's collection. Sheppey. 

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

 Mr. Bowerbank's collection. 



