POEAMINIFEEA OF THE KERIMBA AECHIPELAGO. 591 



circular type, the other roughly triangular in outline owing to the presence of three 

 definitely marked chambers in the outer whorl. Both varieties are figured by Brady, 

 and they probably represent the micro- and megalospheric forms of the species. 



104. Planispirina communis Seguenza. (PL XL VI. figs. 8, 9.) 



Planispirina communis Seguenza, 1879-80^ FTR. p. 310, pi. xvii. fig. 18. 

 „ ,, Brady, 1884, FC. p. 196, pi. cxiv. figs. 4-7. 



„ „ Cat. Mus. Normaniauum, pt.viii. 1892, Rbizopoda no. 145. 



1 Station. 



Two specimens at Stn. 11, noteworthy owing to the extremely limited distribution 

 of the form as at present recorded. Seguenza's original fossils were from the Pliocene 

 of Messina, and the only other record, as far as we know, is Norman's (published by 

 Brady) from the Faroe Channel (170 fms.). The species occurs frequently in many of 

 the ' Goldseeker ' dredgings in the Shetland-Faroe Channel. 



Subfamily Fischerinin^. 

 FiscHEEiNA Terquem. 



105. Fischerina rhodiensis Terquem. • 



Fischerina rhodiensis Terquem, 1878, FIR. p. 80, pi. ix. (xiv.) fig. 25. 



2 Stations. 



A single specimen from Stn. 3 and several from Stn. 11, agreeing in all respects 

 with Terquem's figure and description, except that the number of convolutions in our 

 individuals rarely exceeds two or three and that the umbilical depression on the 

 inferior side is less pronounced. The sutural lines in the Kerimba specimens are 

 equally distinct on both faces of the shell. 



106. Pischerina pellucida Millett. 



Fischerina pellucida Millett, 1898, etc., FM. 1898, p. 611, pi. xiii. figs. 14, 15. 

 6 Stations. 



Occurs at several Stns., but, as a rule, only one or two specimens at each. They 

 agree generally with Millett's figure and description, except in the aperture, which is, 

 as a rule, a simple opening occupying the whole of the extremity of the final 

 chamber and furnished with a thickened and inverted lip, not constricted and everted 

 as in Millett's specimens. At Stn. 2 ^^ a single specimen was found having only 

 three chambers in the final whorl instead of the normal five. 



107. Fischerina helix, sp. n. (PL XLVl. figs. 10-14.) 



1 station. 



Test delicate, opalescent, and extremely fragile, consisting of four to five convolutions 

 VOL. xs.. — PART XVII. No. 7. — ISovemler, 1915. 4 p 



