38 TERTIARY ENTOMOSTRACA OF ENGLAND. 



4. Cytheridea debilis, Jones. Plate I, fig. 16. 



Cttheuidea debilis, Jones. Monogr. Tert. Entom., 1857, p. 43, pi. vi, fig. 13. 



This occurs in numbers in the Oligocene Beds at Col well Bay, Isle of Wight, 

 and is referred to in the ' Geol. Mag.,' 1887, p. 455, as having been found also 

 at Bracklesham. (British Museum.) 



5. Cytheridea pingcis, Jones. 



CYTiiEitiDEA pinguis, Jones. Monogr. Tert. Entom., 1857, p. 43, pi. ii, figs. 4>a — h ; 



Brady, Trans. Zool. Soc, vol. x, 1878, p. 397 r 

 pi. lxii, figs. 3 a — d ; Jones and Sherborn, Greol. 

 Mag., 1887, p. 455. 



Mr. Clement Reid has collected this species from the Weybourn Crag at East 

 Runton. It is rare in the Suffolk Crag, but abundant in the Antwerp Crag. (Brit. 

 Mus. and Mus. Pract. Geol.) 



6. Cytheridea elongata, Brady. Plate III, figs. 20 a, b, 21, 22. 



Cytheridea elongata, Brady. Monogr. Becent Brit. Ostrac., Trans. Linn. Soc, 



1868, vol. xxvi, p. 421, pi. xxviii, figs. 13—16, 

 and pi. xl, fig. 6 ; Monogr. Post-Tcrt. Entom., 

 1874, p. 181, pi. ix, figs. 10—13 ; Jones and 

 Sherborn, Geol. Mag., 1887, p. 456. 



Numerous specimens from the Weybourn Crag of East Runton, varying 

 slightly in individuality of growth and sex, are referable to Brady's Cytheridea 

 elongata. Collected by Mr. Clement Reid, F.G.S. (Museum Practical Geology.) 

 We have it also, not rare, in the Norwich Crag of Southwold. (British Museum.) 



7. Cytheridea Sorbyana, Jones. 



Cytiiebidea Soubyana, Jones. Monogr. Tert. Entom., 1857, p. 44, pi. iv, figs. 



Qa — e; B., C, and K., Monogr. Post-Tert. 

 Entom., 1874, p. 180 (for synonyms and locali- 

 ties), pi. vii, figs. 7 — 12. 



This species is abundant in Post-Tertiary Beds, and in the Northern seas. 

 (British Museum, &c.) 



