232 THE FORAMINIFERA OF THE SHORE-SAND AT BOGNOR. 



Plate 13. 



Fig. 1. Cornuspira foliacea, Philip pi, sp. British specimen 

 from Mr. Joseph Wright's collection. Dredged off 

 South-west Ireland, 38 — 41 fathoms. 

 ,, 2. Specimen from Bognor shore-sand. 



Figs. 3, 4. Specimens of the same from Bognor, showing the union 

 (query, plastogamic) of several individuals. 



Plate 14. 



Note. — The figures on this plate are reproduced from photographs 

 taken by Dr. E. J. Spitta, F.R.A.S., and are intended to give 

 an idea of the general appearance of the species. 



Fig. 1. Tit a, •ammina papillata, Brady, x 10 diam. 



„ 2. Nubecularia hicifuga, Defiance, x 15 diam. 



,, 3. Thurammina papillata, Brady, X 12 diam., showing the 

 papillate processes. 



,, 4. Discorbina obtusa, d'Orbigny, x 24 diam. Plastogamic 

 specimen in the centre. 



,, 5. Discorbina parisiensis, d'Orbigny, x 26 diam. The three 

 specimens at the top show the basal view of specimens 

 which have undergone plastogamic union and subse- 

 quent separation. The greater part of the base and 

 the internal septa have been absorbed, so that the 

 interior of the test is visible. The second and third 

 rows contain specimens in plastogamic union. It will 

 be seen that the specimens vary in size, and that their 

 apertures rarely coincide. 



,, 6. Discorbina vesicularis, Lamarck, x 28 diam. 



Jour*. Q,<(Mt Microscopical Club, Ser. 2, Vol. IX., Ao. 57, Aocembm- lf05. 



