38 "TERRA NOYA" EXPEDITION. 



Nov. 2, 1903. Winter Quarters. No. 12 hole, 10 fathoms. 

 Winter Harbour, Hut Point. 



,, ,, Hut Point. 



,. ,, ,, ,) 



Coaling Harbour, McMurdo Strait. 

 Erebus Bay. 

 North of Wood Bay. 

 S.E. of Foulman Island. 

 Possession Islaals. 

 Cape Adare — Cape North. 



(v.) CLASSIFICATION ADOPTED IN THIS REPORT. 



In our recent paper upon Verneuilina 2}olystropha (H.A. and E. 1920, V.P., 

 p. 177) we took occasion, in agreement with Biltschli and others, to say : " It 

 seems to us that the various systems of classification which have succes- 

 sively been suggested, and accepted, are more or less artificial and unscientific. 

 Taking a single example, it seems to us that the whole of the Lituolidae should 

 be redistributed among their hyaline and porcellanous isomorphs." We avail 

 ourselves of the opportunity afforded us by the publication of this Report, comprising 

 as it does between six and seven hundred recognised species and varieties, 

 and, in addition, by the fact that we have found and described arenaceous 

 isomorphs of several hyaline species which have not, so far as we know, been 

 recorded as exhibiting isomorphism, to express our views more fully. We do not 

 think the time has yet arrived to abandon the generally accepted, if artificial, 

 system of Brady, which, with some modifications, is followed in this Report. But 

 we have endeavoured to clear the way towards a proper zoological allocation of 

 the Lituolidae by refraining wherever possible from the creation of new arenaceous 

 species, and retaining our new arenaceous forms in the genera to which they 

 naturally belong, treating them as mere variations of an existmg calcareous species 

 and always under the varietal name " var. arenacea." We have also supplemented 

 this step by liberal references to previously-recorded isomorphic species throughout 

 the Report, but it must not be assimied that these references are in any way 

 complete or even inchide a majority of the instances of isomorphism which could 

 be found in the literature of the Group. 



To explain fully the position, a brief resiune of the history of the Lituolidae 

 seems necessary. Until 1862 no intensive attention had been paid to the arena- 

 ceous Foraminifera as such, and it was not imtil that year that many species 

 which had been included by authors, from d'Orbigny onwards, among the so-called 

 Perforata, were removed from the positions assigned to them and included in the 



