1895.] rOEAMINIFEBA FBOM THE ABABIAIf SEA. 45 



270. NoNiOKiifA POMPiLioiDES (Ficlitel & Moll). 



Nonionina pompilioides, Brady, 1884, Chall.Eep. vol. ix. p. 727, 

 pi. cix. figs. 10, 11. 



Found in Sample No. 1, very rare ; Xo. 5, very rare; No. 6, 

 rare. 



PoLTSTOMELLA, Lamarck. 



271. PoLYSTOMBLLA CRISPA (Linne). 



Folystomella crispa, Brady, 1884, Chall. Kep. vo]. ix. p. 736, 

 pi. ex. figs. 6, 7. 



Pound in Sample No. 1, rare ; No. 2, very rare. 



Ajiphistegina, d'Orbigny. 



272. AiiPHiSTEGiKA LEssoxii, d'Orbigny. 



Amphistegina lessonii, Brady, 1884, Chall. Eep. vol. ix. p. 740, 

 pi. cxi. figs. 1-7. 



Found in Sample No. 1, frequent ; No. 2, common ; No. 4, 

 rare. 



273. AiiPHiSTEGiNA EADiATA (Fichtel & MoU). (Plate I. 

 figs. 8, 9, 10, 12.) 



Nautilus radiatus, Fichtel & Moll, 1803, Test. Micr. p. 58, 

 pi. viii. figs. a-d. 



The above species was described by Fichtel and Moll i'rom 

 specimens found in sea-sand from the interior of shells from the 

 Eed Sea. 



Profs. Parker and Jones remark ' on this form as follows : — 



" This is a small, smooth, lenticular Nummidina, about 1 line in 

 diameter ; marked with twenty-four radiating, translucent, septal 

 lines, slightly sinuous, with an open sigmoid flexure, which 

 extends from the periphery to the umboual centre, and as many 

 intermediate, short, parallel septal lines towards the peripherical 

 margin. These indicate altogether nearly fifty chambers in the 

 outer whorl, the lateral lobes of which, in passing towards the 

 umbonal centre, interfere with each other, leaving only indications 

 of half as many elongate, triangular, sinuous, umbilical lobes." 



Having this opportunity of examining the very fine specimens 

 referable to the above species, which were found in the above- 

 mentioned (no. 2) coral-deposits of the Laccadives, I prepared slices 

 of the tests, both median and transverse, in the hope of finding 

 additional evidence regarding the affinities of the species. This 

 was considered necessary, especially since the recent examj^les of 

 Nummulina appear to have been hitherto somewhat neglected. 



In the first place, the specimens of Amphistegina vadiata which 

 occur in the Laccadive Island deposits are inequilateral in transverse 



^ " The Nomenclature of the Foraminifera, Part III.," Ann. & Mag. Nat. 

 Hist. ser. 3, toI. v. [1860] pp. 105, 106. 



