a ON ENTOMOSTRACA COLLECTED IN THE SOLWAT DISTRICT 



Thalestris harpactoides, Claus. 

 Delavalia palustris, Gr. S. Brady. 

 Dactylopus brevicornis, Claus. 

 Thalestris clausii, Norman. 

 Natinopus palustris, Gr. S. Brady. 

 Platychelipus littoralis, G. S. Brady. 

 Harpacticus chelifer (Miiller). 

 Cletodes propinqua, Brady and Robertson. 



,, longicaudata, Brady and Robertson. 

 Idya fareata (Baird). 



It is interesting to note that some of the most remarkable 

 species in this list were recorded by me years ago as occurring 

 in salt-marsh pools at Seaton Sluice, and one of them, — Dela- 

 valia palustris, — was first described from specimens collected 

 there. The other species found at Seaton Sluice are Eurytemora 

 affinis, Nannopus palustris, Platychelipus littoralis, Tachidius 

 hrevicortiis, and jT. littoralis. The last-named species. has not 

 hitherto been recorded from the Northumberland Coast, and has 

 very probably been confounded with T. brevicornis, which it 

 closely resembles. Platychelipus littoralis was originally de- 

 scribed, though imperfectly, from Suffolk specimens, and as those 

 now obtained from the Solway enable me to give a better 

 account of the species, I here re-describe and figure it more 

 fully. Mr. I. C. Thompson has recorded Platychelipus littoralis 

 and Delavalia palustris as occurring in a few spots on the coast 

 of North Wales, always in muddy parts of the littoral zone. 



Mr. T. Scott also has^ recently recorded* Platychelipus lit- 

 toralis from the "Forth Estuary, near Culross, and also off 

 Musselburgh." And respecting Delavalia palustris it is inter- 

 esting to note the following remarks of the same accurate 

 observer. ^'Habitat, — Estuary of the Eorth in the vicinity of 

 Culross, rather scarce. Common in brackish. water pools at the 

 mouth of the Peffer Burn, Aberlady Bay, female with ovisacs. 

 Delavalia palustris appears to be restricted to localities where 

 the water is more or less brackish. In the monograph of the 



* Eleveutli Annual Report of the JMshery Board for Scotland, p. 205. 



