274 VINE : POLYZOA OF THE LOWER AND UPPER GREENSAND. 
( Froiidicularia biconiis, Reiiss, 
25 1 • • • • 5 
' (. " var. with two parallel longitudinal ribs," Jones. 
26. Flabellina Cordai, Reuss. 
27. Vaginulina costulata, Reuss. 
28 „ „ var. near V. incompta, Rss. 
29. Nodosaria Raplianus, Linne. 
;^0. Dentalina communis, D'Orb. 
31. Lagena marginata, D'Orb. 
With the exception of Nos. 1, 4, 9, 26, 29, and 31, the whole of 
the above species are rather common in tlie Phosphate debi'is ; No. 
2 6 is very rare ; and 23 and 24, especially No. 23, literally swarm in 
the material, and examples may be picked out by thousands. 
B. OSTRACODA. 
1. Bairdia Harrisiana, Jones. 
2. ,, subdeltoidea. Miinster. 
3. Cytheropteron concentricum, Reuss. 
4. „ var. virginea, Jones. 
5. Cythere Harrisiana, Jones. 
6. Cythereis triplicata, Roenier. 
7. quadrilatera, Roemer. 
8. „ ornatissima, Reuss. 
9. ,, „ var. A. 
10. „ „ var. B. 
11. Cytheridea perforata, Roemer. 
12. Cytherella ovata, Roemer. 
13. ,, truncata, Bosquet. 
Though some of the above Ostracoda are rather plentiful in the 
Phosphate dberis, others are very rare. None of them, however, are 
so abundant as individuals as the Foraminifera 
Explanation of Plate. 
Figs. 
1- lc. Sto.matopora linearis, D'Orb. 
Var. Mortoni, Vine. 
2- 2b. graciliformis (D'Orb. sp.) (= S. gracilis, D'Orb.) 
3- 3a. Proboscina dilatata, D'Orb. 
Var. Cantabrigiensis, Vine. 
