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).' This species is 

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



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



Ctpbis eeptans, O. S. Brady. Trans. Linn. Soc, vol. xxvi, 1868, p. 370 (for 



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

 Geol. Mag., 1870, p. 158 ; Robertson, Fauna 

 "W. Scotl., 1880, p. 20. 



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

 bear setje long enough to give it the character of a Gi/pris rather than that of a 

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



LocaHties additional to those given in the ' Monogr. Tert. Entom.' 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.) 



11. CYPRIDOPSIS, Brady, 1867." 



1. CypRiDOPSis VIDUA (Cypris, Miiller, 1785). 



Ctpeidopsis 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 ^ Robertson, 1869. 



Ctphidopsis obesa, Brady, Crosskry cf 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 locahties 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. iii, p. 365. See also ' Monogr. Post. -Tert. 



Entom.,' 1874, p. 129. 



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

 * ' Intellectual Observer,' September, 18G7, vol. xii, p. 117. 



