1890. Herpetocypris tumefacta, G. 0. Sars, " Overs! gt af Norges 

 Crustaceer : II. Branchiopoda, Ostracoda, Cirripedia," Vid.-Selsk. 

 Forhand. Cbristiania, p. 62. 



1900. Prionocypris tumefacta, Kaufcnann, p. 295, pi. xvi. figs. 13-15, 



pi. xxi. figs. 9-13. 

 1900. Cypris tumefacta, G. W. Miiller, p. 73, pi. xvii. figs. 4, 8, 13. 



Large pond at Torcross, June 22, 1904 (A. M. N.}. 

 ILTODROMUS OLIYACEUS. 



1889. Erpetocypris olivacea, Brady & Norman, p. 89, pi. i. figs. 3, 4. 



1891. Cypris olivacea, Vavra, p. 88, fig. 20. 



1894. Erpetocypris olivacea, Croneberg, "Beitrag zur Ostracoden- 

 fauna der Umgegeud von Moskau," Bull. Soc. Imp. des Natura- 

 listes de Moscou, p. 14, pi. vii. figs. 13 a-d (separate copy). 



1895. Ilyodromus olivace/ts, G. 0. Sars, " Contrib. Freshwater 

 Entoni. New Zealand," Vid.-Selsk. Skrifter, p. 39 (separate copy). 



1896. Ilyodromus olivaceus, Brady & Norrnan, p. 724. 



1900. llijodromus olivaceus, Kaufmann, p. 299, pi. xx. figs. 7-9, 

 pi. xxi'. figs. 17-21. 



In a small pond close to the road leading south from Ilfra- 

 combe (A. M. N.). 



PIONOCYPRIS VIDUA (0. F. Miiller). 



1850. Ci/pris vidua, Baird, Brit. Entom. p. 152, pi. xviii. figs. 1-3. 

 1850. Cypris sella, id. ibid. p. 158, pi. xix. fig. 5. 

 18G8. Cypridopsis vidua, Brady, p. 375, pi. xxiv. figs. 27-36, 46. 

 1896. Pionocypris vidua, Brady & Norrnan, p. 726, pi. Ixiv. fig. 19. 



This would seem to be the commonest Ostracod of the 

 freshwaters of Devon and Cornwall. 



PIONOCYPRIS OBESA (Brady & Robertson). 



1869. Cypridopsis obcsa, Brady & Robertson, " Notes on a Week's 

 Dredging in the West of Ireland," Ann. & Mag. Nat. Hist. ser. 4, 

 vol. iii. p. 12, pi. xviii. figs. 5-7 (separate copy). 



1889. Cypridopsis vidua, variety, Brady & Norman, p. 89. 



1890. Cypridopsis obesa, G. 0. Sars, " Oversigt af Norges Crus- 

 taceer : II. Branchiopoda, Ostracoda, Cirripedia," Vid.-Selsk. For- 

 hand. Christiania, p. 92. 



1896. Pionocypris obesa, Brady & Norman, p. 726. 



The bandless form, which bears the above name, found in 

 the lliver Otter near Honiton (A. M. N.}. 



CYPRIDOPSIS ACULEATA (0. G. Costa). 



1868. Cypridopsis aculeata, Brady, p. 376, pi. xxiv. figs. 16-20, 



pi. xxxvi. fig. 10. 



1896. Qypridopsis aculeata, Brady & Norman, p. 725. 

 1900. Cypridopsis aculeata, G. W. Miiller, p. 85, pi. xviii. figs. 10. 



18, 19, pi. xiy. fig. 1. 



I 



