CRUSTACEA OF NORTHUMBERLAND AND DURHAM 345 



Herpetocypris reptans {Ba.\Td)=zQi;ido;ia viresceiis G. S. 



Brady (the young). 



Dr. Kaufmann has described several species which are 



nearly allied to this. Very common, especially in grassy 



pools and ditches, but also found in lakes. N.D. 



Herpetocypris strigata (O. F. Miiller). 



Rare in the British Islands. In the burn at Fulvvell 

 Cemetery, Sunderland (G. S. B.) D. 



Herpetocypris tumefacta (Brady and Robertson). 



Warn Burn and the Coquet, Northumberland (Brady and 

 Robertson); near Sunderland (G. S. B.) N.D. 



Prionocypris serrata (Norman)=C)'/;7V bico!or\W. Miiller= 

 Cypris Zenckeri Toth and Chyzer. 

 1863. Can dona serrata, Norman, Trans. Tyneside Nat. 



Field Club, vol. v., p. 148, pi. iii., figs. 1-6. 

 1889. Herpetocypris serrata, Brady and Norman (2), p. 57. 

 1896. Prionocypris serrata, Brady and Norman (3), p. 725. 

 1900. Prionocypris serrata, Kaufmann (5), p. 297, pi. xx., 



figs. 10-12, pi. xxi., figs. 22-26. 

 1900. Cypris serrata, G. W. Miiller (4)', p. 72, pi. xiv., 

 figs. 3, II, 14. 

 Very abundant in the Forge Dam at Sedgefield (A. M. N.); 

 Fardingslake, near Marsden (G. S. B.) D. 



Ilyodromus Robertsoni (Brady and Norman). 



1889. Erpetocypris Robertsoni Bxa-dy and Norman (2), p. 88, 



vv'oodcut. 

 1896. Ilyodromus Robertsoni, Brady and Norman (3), 

 p. 724. 

 In a shallow ditch by the side of the road between Haydon 

 Bridge and Staward (G. S. B.) N. 



Cypridopsis aculeata (O. G. Costa). 



1863. Cypris aculeata, Norman, Trans. Tyneside Nat. Field 

 Club, vol. v., p. 147, pi. iii., figs. 7-9. 

 C. aculeata Costa from Naples was subsequently given the 

 very same name by Lilljeborg from Sweden. 



