Recent and Fossil Foraniinifcm. 321 



known in the shallow waters of tropical seas, where it attains a 

 comparatively large size. All our fragments are apparently from 

 individuals of small size. 



Sub-family 5. Alveolininae. 



Alveolina d'Orbigny. 



43. Alveolina boscii Defrance sp. 



Oryztiria boscii Defrance, 1820, Diet. Sci. Nat. vol. xvi. p. 104. 



Alveolina boscii (Defrance) d'Orbiguy, 1826, Ann. Sci. Nat., vol. vii. p. 306, 



No. 5; ModeleNo. 50. 

 Alveolina elongate d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 307, No. 6. 

 Alveolina quoii d'Orbiguy, 1826, Ann. Sci. Nat., vol. vii. p. 307, No. 7. 

 Alveolina boscii (d'Orbigny) Terquem, 1882, Mem. Soc. Geol. France, ser. 3, 



vol. ii. p. 50, pi. ii. fig. 30. 

 Ditto. (Defrance) Brady, 1884, Foram. 'Challenger,' p. 222, pi. xvii. 



figs. 7-12. 



Fossil. One of the chief constituents of the Mixon Eocks, 

 from which detached specimens occur in profusion in the coarser 

 siftings from all the gatherings. The specimens exhibit great 

 diversity of form, ranging from Alveolina sabulosa (Montfort) to the 

 slender A. quoii (d'Orbigny), and some of them even approach 

 A. melo (Fichtel and Moll). We have, however, recorded them 

 all under Defrance's species, as a more convenient method of 

 dealing with the genus as represented in these shore-sands. 



Millett's record includes A. sabulosa (Montfort), " very 



■common." 



Family III. ASTRORHIZID^. 

 Sub-family 3. Saccammininae. 



Psammosphmra Schulze. 

 44. Psammosphaera fusca Schulze. 



Psammosphsera fusca Schulze, 1874, II. Jahresberichte d. Komm. Unters. d. 



deut'sch. Meere in Kiel , p. 113, pi. ii. fig. 8. 

 Ditto. (Schulze) Brady, 1879, Quart. Journ. Micr. Sci., vol. xix. N.S. p. 27, 



pi. iv. figs. 1-2. 

 Ditto. (Schulze) Brady, 1884, Foram. ' Challenger,' p. 249, pi. xviii. figs. 



1-8. 

 Ditto. (Schulze) Brady, 1887, Synopsis British Recent Foraminifera. 



Recent. One small but regular and quite typical specimen. 

 The occurrence of this species in our shore-sand is somewhat 

 remarkable, as it is, normally, a deep-sea type. Schulze's original 

 specimens were from a depth of 120 fathoms off the coast of 

 Norway, and it has been recorded from Loch Scavaig, Skye, from 

 a depth of 45 to (30 fathoms. It is of frequent occurrence in the 

 North Sea, in similar depths, and in cold areas, but its known range 

 extends down to 2,800 fathoms. It has not apparently been 

 hitherto recorded from a shore-sand. 



June 16th, 1909 z 



