344 CRUSTACEA OF KORTHUMBERLAND AND DURHAM 



Cooling ponds at Monkvvearmouth Colliery, and in a salt 

 marsh north of the river Coquet below Warkworth (G. S. B.) ; 

 Seaton Delaval, Northumberland, and Rainton Meadows, Co. 

 Durham (A. M. N.) This species requires apparently a 

 certain amount of salt in the water which it inhabits. Canon 

 Norman has taken the species in the Botanical Gardens at 

 Palermo, Sicily, whence the type specimens of S. Fischer 

 came. N.D. 



Ilyocypris bistrigata (Jurine). 



1866. Cypris gibba, Brady (partim) (i), p. 369, pi. xxiv., 



figs. 47-49- 



1889. Ilyocypris gibba, Brady and Norman (partim) (2), 

 p. 105. 



1890. Ilyocypris Brady i, G. O. Sars, " Oversigt af Norges 

 Crustaceer. Branch., Ostrac, Cirrip.," p. 50. 



1 89 1. Ilyocypris gibba, var. repens, Vavra, Monog. der 

 Ostracoden Bohmens, p. 60, fig. 18. 



1896. Ilyocypris Bradii, Brady and Norman (3), p. 728, 

 pi. Ixiii., figs. 22, 23, pi. Ixviii., figs. 18, 19. 



1900. Ilyocypris Brady i, G. W. Miiller (4), p. 90, pi. xix., 

 figs. 11-19, pi. XX., figs. 17, 18. 



1900. Ilyocypris Bradyi, Kaufmann (5), p. 353, pi. xxiv., 

 figs. I, 2, pi. XXV., figs. 17, 18. 



Dr. A. Kaufmann (Cypriden und Darvvinuliden) has divided 

 what used to be considered Cypris gibba into no less than five 

 species ; whether these forms are really of specific value 

 further investigations must determine. Meanwhile we include 

 under the name Ilyocypris bistrigata the forms which have the 

 swimming setae shorter than the following joint, and which are 

 assigned by Kaufmann to two of his species, namely, /. Bradyi 

 and /. iners. Our local specimens are referable only to the 

 former species. 



A common species. Among other localities we have speci- 

 mens from Newbiggin and Seaton Delaval, Northumberland ; 

 Lambton Park, Rainton Meadows, and Seaton Carew, Co. 

 Durham. N.D. 



