306 KRCORDS OF THE AUSTRALIAN MUSKUM. 



Byron Bay, at a depth of 111 fatlioins, is well repi-eseiited, the 

 specimens being larger tlian those present in the Byron Bay 

 material. 



The Rotalidse are well represented. A numlier of species of 

 tlie Rotaliiue must subsequently be added to tlie list of tliose 

 mentioned. 



Tlie most abundant member of the Nummulinidte is FolydO' 

 mella macella. This species shows great variation. Many speci- 

 mens have the septal l)ridges very irregularly developed, 

 approaching in that respect FolyxtompUa verricnlata. 



The occurrence of AllomorpJiind. triijonvJa in tlie sand is very 

 interesting in connection with tlie distriljution of that form. 



The Nubecularidrt' are represented chiefly by the genus Planis- 

 ■pirina. 



Although a good number of species of other members of the 

 Miliolinin:e have been detected, the individual species are remark- 

 ably poorly represented. Fairly common in the sand is a marine 

 Diatom, Amphora, sp., allied to Amjihora polyzonata. 



The following is a general list of the species obtained so far as 

 at present determined : — 



Family NUBECULARID^. 



Sub-family Miliolimn^. 



Bilocnlina rirKjinix, Lamarck. 

 Miliolina hicoruis, Walker and Jacob. 



,, sfiparans, Brady. 



,, tri(ioni(la, Lamarck. 



,, ak-eoliformiit, Brady, 

 Ffanispiriiia exiyna, Brady. 



SpiroJocalina arenaria, Brady. 



,, teniuseptata, Brady. 



„ limhata, d'Orbigny. 



,, impressa, Terquem. 



„ excavata, d'Orbigny. 



j» Jynililixsima, Brady, 



sp. 



Suh-famiJy PENP^ROPLiDiNi*;. 



Conwspira iiivoJvenx, Reuss. 

 Orbifolit^s complanata, Lamarck. 



