Recent and Fossil Foramhiifera, 339 



Test compressed, ear-shaped, consisting of about two convolu- 

 tions and six to ten chambers, rapidly increasing in size, the whole 

 usually visible on both sides of the shell. Superior surface, rounded ; 

 periphery more or less acute ; the earliest chambers usually project 

 above the curved surface of the superior face, in a low mammillate 

 spire. The appearance of the inferior surface varies greatly, ac- 

 cording to the degree of evolution of the spiral. In some specimens 

 the central portion presents a sunken umbilicus, the later chambers 

 being turgid and attached to the previous convolution ; in others 

 the whole series of chambers of the final convolution and some of 

 those of the previous convolution are seen to form an evolute spire, 

 which is only held together by an extension of the superior wall 

 connecting it with the previous convolution. This is fairly well 

 shown in the drawing, fig. 6, representing the inferior side of the 

 Selsey specimen. Some of the North Sea examples present this 

 depauperate stage in an even more striking degree ; the whole shell 

 viewed both from above and below presents a somewhat significant 

 resemblance to the human ear ; hence the specific name which we 

 have given to this shell. 



In the North Sea the species is most frequent in the muddy 

 sands of the Moray Firth and analogous areas, but it also extends 

 to the Faeroe Channel and the west coast of Scotland. We have 

 seen specimens probably referable to this species in its less extreme 

 type in some of Mr. Joseph Wright's dredgings from the west of 

 Ireland. 



It may be remarked that all the specimens appear to have a 

 somewhat large primordial chamber. It is not improbable, that 

 our species may represent the mega iosph eric type of some other 

 form, perhaps of P. auricula or P. oblonga. 



Length, 0*15-0 -25 mm. Breadth, 0*1 to 0*2 mm. 



383. Pulvinulina lateralis Terquem sp. 



Rosalina lateralis Terquem, 1878, Mem. Soc. Geol. France, ser. 3, vol. i. Mem. 



3, p. 25, pi. ii. fig. 11. 

 Pulvinulina lateralis (Terqnem) Brady, 1884, Foram. ' Challenger,' p. 689, pi. 



cvi. figs. 2, 3. 

 Ditto. (Terquem) Egger, 1893, Abhandl. k. bayer. Akad. Wiss. CI. II. vol. 



xviii. p. 413, pi. xviii. figs. 48-50. 

 Ditto. (Terquem) Millett, 1904, Malay Foramimfera, Journ. K. Micr. Soc., 



p. 497. 

 Ditto. (Terquem) Sidebottoru, 1909, Foram. from Delos, Mem. Manchester 



Lit. and Phil. Soc, No. 21, p. 5, pi. ii. fig. G, pi. iii. figs. 1, 2(?) 



A few specimens, probably fossil. The recent records of this 

 species appear to be confined to tropical warm seas in shallow 

 water. Terquem's original specimens were from the Pliocene of 

 Rhodes. 



