38 TERTIARY ENTOMOSTRACA OF ENGLAND. 



4. Cythehidea debilis, Jones. Plate I, fif?. IG. 



Cytheeidea debilis, Joiics. Monogr. Tort. Entom., 1857, p. 43, pi. vi, fig. 13. 



This occurs in numbers in the Oligocene Beds at Colwell 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. CytHEEIDEA PINGUTS, Joiies. 



Cythkhidea pingtjis, Jones. Monogr. Tert. Entom., 1857, p. 43, pi. ii, figs. Aia—li ; 



Brady, Trans. Zool. Soc, vol. x, 1878, p. .307, 

 pi. Ixii, figs. 3(7 — d; Jones and Sherborii, Geol. 

 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, h, 21, 22. 



Cttheeidea elongata, Brady. Monogr. Eecent Brit. Ostrac, Trans. Linn. Soc, 



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

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

 1S74, p. 181, pi. ix, figs. 10 — 13 ; .Tones 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, .Tones. 



Cttiiebibea Soebtana, Jones. Monogr. Tert. Entom., 1857, p. 44, pi. iv, figs. 



e a — 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.) 



