CRUSTACEA OF NORTHUMBERLAND AND DURHAM 353 

 CVTHRRIDEA TAPILLOSA BoSquet. 



1865. Cythere debilis, Norman, Nat. Hist. Trans. Northum- 

 berland and Durham, vol. i., p. 15, pi. v., figs. 5-8. 



In deep water, somewhat local, but common when found, 



N.D. 

 Cytheridea punctillata G. S. Brady. 



Seaton Carew (G. S. B.) D. 



Cytheridea elongata G. S. Brady. 



On muddy rocks at low-water mark at Seaton Carew 

 (G. S. B.) D. 



Cytheridea torosa (Rupert Jones). 



1864. Cyprideis torosa, Brady, Trans. Tyneside Nat. Field 

 Club, vol. vi., p. 108, pi. iii., figs. 11-23. 



1868. Cytheridea littoralis, Brady, Nat. Hist. Trans. North- 

 umberland and Durham, vol. iii., p. 6, 

 In brackish water, Warkworth, Alnmouth, Cambois, Seaton 

 Sluice, and Jarrow Slake (G. S. B.); Hartlepool (A. M. N.). 

 Inland in fresh water in the Forge Dam at Sedgefield 

 (A. M. N.); and at Belsay (G. S. B.) N.D. 



Eucythere declivis (Norman). 



1865. Cythere declivis, Norman, Nat. Hist. Trans. North- 

 umberland and Durham, vol. i., p. 16, pi. v., figs. 9-12. 



In deep water off" the coast, but not common. Both the 

 varieties argus Sars and anglica Brady are found upon the 

 coast. N.D. 



Krithe bartonensis (Rupert Jones). 



Taken by G. S. B. off both the Northumberland and Durham 

 coasts in 30-60 fathoms, but very local. N.D. 



LoxocoNCHA impressa (Baird). 



Frequent in rock pools and estuaries, and in moderate 

 depths off the coast. N.D. 



LoxocoNCHA viRiDis (O. F. Miiller). 



This is Cythere rhomboidea S. Fischer and Loxoconcha 

 elliptica G. S. Brady. 



Essentially a brackish water species. Rivers Aln, Coquet, 

 Wansbeck, and Blyth (G. S. B.) ; Seaton Sluice and Hartle- 

 pool (A. M. N.) N.D. 



