EXPLANATION OF PLATE IV. 



Fig. I. Discorbina parisiensis, (D 'Orb.). I a, upper surface; I b, lower surface; 



1 c, edge view, x 60, diam. ; I d, fragment of lower surface, showing 

 structure, greatly enlarged. Shore sand, Greyabbey, Strangford 

 Lough, County Down. 



,, 2. Discorbina parisiensis, (D'Orb.). 2 a, upper surface; 2 b, lower surface; 



2 c, edge view; x 60 diam. Off Grey Point, 6 fms. 



„ 3. Trochammina gordialis, P. and J. x 60 diam. Off Black Head, 20 

 fms. 



„ 4. Tinoporus lucidus, Brady MS. 4 a, upper surface; 4 b, edge view; 

 x 40 diam. White Knowe, Strangford Lough, 6 fms. 



,, 5. Tinoporus lucidus, Brady MS. Encrusting a stem of polyzoan; x 30 

 diam. Off Maiden Lighthouses, 60 fms. 



„ 6. Lituola globigeriniformis, P. and J. x 60 diam. Off Maiden Light- 

 houses, 60 fms. 



„ 7. Lagena hispida, Reuss. x 60 diam. Off Black Head, 18 fms. 



,, 8. Lagena trigono-marginata, P. and J. 8 a, side view; 8 b, end view 

 showing aperture; x 60 diam. Off White Head, 7 fms. 



„ 9. Lagena oblonga, (Seguenza). ga, side view; 9 b, end view, showing 

 aperture; x 60 diam. Off White Head, 10 fms. 



„ 10. Lagena sulcata, W. and J. x 60 diam. Off Black Head, 18 fms. 



, f II. Lagena costata, (Will.), x 60 diam. Off Black Head, 18 fms. 



„ 12. Lagena costata, ("W 'ill.). A young specimen, x 60 diam. Off Maiden 

 Lighthouses, 60 fms. 



,, 13. Lagena costata, (Will.). Bilocular, x 60 diam. Off Orlock Point, 

 11 fms. 



,,14. Lagena Williamsoni, (Alcock). x 60 diam. Off White Knowe, Strang- 

 ford Lough, 6 to 8 fms. 



„ 15. Lagena Jeffreysii, Brady, x 60 diam. Off Maiden Lighthouses, 

 62 fms. 



