10 TERTIARY ENTOMOSTRACA OF ENGLAND. 



Hamstead Beds of the Isle of Wight (Specimen, No. 4430, Borehole, No. 109, at 

 Staples, near Newport, one of the trial-borings made in 1887). 1 This species is 

 very common in the recent state. (Brit. Mus. and Mus. Pract. Geol.) 



4. Cypris rbptans (Candona, Baird, 1835). 



Cypbis eeptans, O. 8. Brady. Trans. Linn, Soc, vol. xxvi, 1868, p. 370 (for 



synonyms, &c), pi. xxv, figs. 10 — 14; Jones, 

 G-eol. Mag., 1870, p. 158 ; Kobertson, Fauna 

 W. Scotl., 1880, p. 20. 



This species was referred by Baird to Candona, but its pediform antennae 

 bear setas long enough to give it the character of a Cypris rather than that of a 

 Candona, and its second pair of jaws also approximate to those of Cypris (G. S. B.). 



Localities additional to those given in the ' Monogr. Tert. Bntom.' and ' Post- 

 Tert. Entom.' are Mundesley and Sidestrand, and near Hitchin (' Geol. Mag., 

 1887, p. 459) ; also Barnwell, near Cambridge (Mrs. Hughes, Ibid., 1888, p. 200). 

 (British Museum, &c.) 



II. CYPRIDOPSIS, Brady, 1867. 2 



1. Cypridopsis vidua (Cypris, Mutter, 1785). 



Ctpbidopsis vidua, Brady. Trans. Linn. Soc, vol. xxvi, 1868, p. 375, pi. xxiv, 



figs. 27-30,46. 



This common freshwater species occurs in a Post-Tertiary Chara-marl near 

 Hitchin (W. Hill, jun., Esq., F.G.S.). 



2. Cypridopsis obesa, Brady fy Robertson, 1869. 



Ctpbidopsis obesa, Brady, Crosskey Sf Robertson. Monogr. Post-Tert. Entom., 



1874, p. 128, pi. i, figs. 1—4 



This rather common species occurs at Mundesley and Sidestrand, as well as at 

 the localities recorded elsewhere (' Geol. Mag.,' 1887, p. 459). (Mus. Pract. Geol.) 



III. POTAMOCYPRIS, Brady, 1870. 



This genus was instituted in 1870 by Dr. G. S. Brady in the ' Nat. Hist. 

 Trans. Northumberland,' &c, vol. hi, p. 365. See also ' Monogr. Post. -Tert. 

 Entom.,' 1874, p. 129. 



1 See Note by Mr. C. Eeid in the ' Geol. Mag.,' November, 1887, p. 510. 



2 ' Intellectual Observer,' September, 1867, vol. xii, p. 117. 



