PLATE VIII. 



Fi s- 



1. Scyttaridia Koenigii (p. 35), showing the general form of the carapace and abdomen, 



and the flat, scyllariform, external antennae. From a specimen in Mr. Bowerbank's 

 collection. 



2. Another specimen showing the orbits and eyes. From Mr. Wetherell's collection. 



3. Side view of the same. From Mr. Bowerbank's collection. 



4. Hoploparia gammaroides (p. 38), back view. From a specimen in Mr. Bowerbank's 



collection. 



5. Side view of the same species. Mr. Wetherell's collection. 



6. Specimen of the same, showing the caudal plates. From the same collection. 



The whole of the specimens of both species are from Sheppey. 



