[ 363 ] 



XII. The Foraminifera of the Kerimha Archipelago [Portuguese East Africa). — 



Part I. By Edward Heron- Allen, F.L.S., F.Z.S., F.G.S., F.R.M.S., and 

 Aethue Eaeland, F.R.M.S. 



[Eeceived June 9, 1914; Eead October 27, 1914.] 



[Plates XXXV.-XXXVII.] 



Index. 



Pago 



Introduction , 36S 



Table of Stations and Description of Material 365 



On /j'lVZia and iVowria, Two new Genera of Arenaceous Foraminifera 371 



Systematic : 



Iridia diaphana, gen. et sp. n 371 



Nouria, gen. n 375 ^<^\an /isf/f^^ 



N. polymorpliinoides, sp. n 376 ^^ ''. 



N. harnsii, sp. n 376 f p£g S01§.1§ 



iV. compressa, sp. n 378 \ ^ ~. 



Appendix A. — Keport on the Mineral Constituents of the Material examined . . 379 ^'^^^/cfial Mu^S^^^ 



Appendix B. — List of Fossil Foraminifera found at Station XIII. (Pemba Ba)'). 383 



Explanation of the Plates 386 



Introduction. 



J. HE Kerimba — or Querimba — Archipelago lies off the Eastern Coast of Africa, and 

 extends from Cape Delgado on the North (Lat. 10° 42' S.) to Pemba Bay (Maunhane 

 Point, Lat. 12° 5S' S.), and studs that portion of the Indian Ocean which lies between 

 these two points and the northern part of the Island of Madagascar, with which it is, 

 as it were, connected by the Comoro Islands *. These islands and the sea in which 

 they lie were made the subject of an exhaustive survey, occupying the months 

 September 1907 to May 1908, by Dr. James J. Simpson, M.A., D.Sc, the primary 

 object of the investigation being to consider the possibility of establishing a Pearl 

 Fishery in these waters. The period occupied by the investigation being that of the 

 North-east Monsoon Season, the conditions were the most favourable possible for 

 the purpose. Dr. Simpson was thus enabled to make important collections, wliich 

 have been placed in the hands of various specialists with a view to working out 

 the contained fauna and flora, the foraminiferous sands and muds having been 

 entrusted to us for examination. 



* See the Admiralty Charts, Nos. 658 and 1809. 



VOL. XX. — PART XII. No. 1. — November, 1914. 



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