308 AUSTRALIAN FORAMINIFERA, II., 



Family NUM MULINID^. 

 Subfamily POLYSTOMELLIN^. 

 13. POLYSTOMELLA IMPERATRIX Brady. 



This material was submitted to us b}^ Miss M. Lodder. 

 Accompanying the foraminifera there are several species of 

 polyzoa. 



The Miliolina which we have referred to M. hicornis is a new 

 variety which has the striations and ornamentation of M. pul- 

 chella but the outline, aperture, and tootli of M. hicornis. The 

 tooth, however, is rather more slender than that of typical M. 

 hicornis. 



Discorhina rosacea and D. vesicularis are the most abundant 

 forms in the material, and they attain greater dimensions and 

 more perfect development than those found in the Lyell Bay 

 material, and other foraminiferal sands which we have examined. 



It might be remarked that Discorhina vesicularis appears to 

 thrive best in shallow water of the south temperate zone, 

 especially where the waters are cold, as in Bass Strait where we 

 have the Antarctic drift entering from the south-west. 



Although specimens of this species occur in Port Jackson, they 

 do not attain the grand development which they exhibit in Bass 

 Strait. No doubt it will be found in increasing abundance south 

 of Sydney, as we approach the cold current entering the Pacific 

 Ocean through Bass Strait. 



6. Fossil Foraminifera kindly suhmitted hy Miss M. Lodder^ 

 of the Launceslon Museum. 



Tilts material was obtained from the debris of fossil mollusca 

 collected at Table Cape. 



Family MILIOLID^. 

 Subfamily MILIO LINING. 



1. BiLOCULiNA SPH^RA d'Orb. 



2. B. IRREGULARIS d'Orb. 



3. B. ELONGATA d'Orb. 



4. B. RiNGENS Lamk. 



