40 TERTIARY ENTOMOSTRACA OF ENGLAND. 



This angular and smooth form, related to C. perforata, should, we think, be 

 regarded as a species. It came from the London Clay of Copenhagen Fields. 

 (British Museum.) 



There are several forms of this kind besides the var. insignis and the allied 

 glabra, from the London Clay (' Monograph,' p. 46) ; such as C. punctatella, 

 Bornemann, ' Zeitschr. deutsch. geol. Ges.,' vol. vii (1855), p. 360, pi. xxi, fig. 2, 

 and C. incrassata, Bosquet, ' Entom. Tertiair.,' p. 44, pi. iii, fig. 11. 



11. Cttheridea (?), sp. 



Cttiieeideis (?), spec. Monogr. Tert. Entom., 1857, p. 49, pi. vi, fig. 15. 

 This obscure form from the Woolwich Beds may possibly belong to Cytheridea. 



12. Cytheridea ? barbata (Sowerby). 



Cythere barbata, Sotverby. Trans. Geo]. Soc, ser. 2, vol. v, 1834, p. 131, pi. ix, 



fig. 1. 



This specimen, once in the Wetherell Collection of London-Clay fossils, has 

 been lost. It probably belonged to Cytheridea. See footnote, page 18. 



XIV. KRITHE, B., C, 8f B., 1874. 



{Cytherideis, Jones, in part, 1857, Ilyobates, Sars, 1865.) 

 Monogr. Post-Tert. Entom., 1874, p. 183. 



1. Krithe Bautonensis {Jones). 



Cytherideis Bartonensis, Jones. Monogr. Tert. Entom., 1857, p. 50, pi. v, 



figs. 2 a, b, 3 a, b. 

 Iltobates PRiETEXTA, 6. O. Sars. Overs. Norg. mar. Ostrac, 1865, p. 60. 



— Bartonensis, Brady. Trans. Linn. Soc, vol. xxvi, 1868, p. 432, pi. xxxiv, 



figs. 11 — 14, and pi. xl, fig. 5; Jones, Geol. 

 Mag., 1870, p. 157. 

 Krithe — Brady, Orosskey& Robertson. Monogr. Post-Tert. Entom., 



1874, p. 184, pi. ii, figs. 22—26. 



This species lives in the North Atlantic, and is not rare in the Post-Tertiary 

 deposits. Rare in the Middle Eocene of Barton Cliff (Jones) and Highcliff 

 (Edwards), Hampshire. (British Museum.) 



