BY H. I. JENSEN. 815 



79. P. OBLONGA, var. scabra, Williamson; Brady, C.R., pl.cvi. 



f.8c. 



80. P. PATAGONICA, d'Orb.; C.R., pl.ciii. f.7. 



81. Truncatulina variabilis, d'Orb.; CR., pl.xciii. f.Gand 7. 



82. Anomalina arimiensis, d'Orb.; C.R., pl.xciii. f.lO, h. 



83. RoTALiA VENUSTA, Brady, C.R., pl.cviii. f.2. 



Subfamily TINOPORIN^. 

 (6) 81:. Carpentaria utricularis, Carter; C.R., pl.c. f.l. 

 85. Polytrema sp. (fragments). 



Family NUMMULINID^. 

 Subfamily POLYSTOMELLINJE. 

 {a) 86. NONIONINA UMBILICATA. 



{h) 87. NoNioNiNA scAPHA, Fichtel k Moll.; C.R., pl.cix. f.l6. 



88. PoLYSTOMELLA CRisPA, Linne; C.R., pl.cx. f.6-7. 



89. P. SUBNODOSA, Miinster; C.R., pi. ex. f.l. 



90. P. MACELLA, Fichtel & Moll.; C.R., pl.cx. f.8, 9, 11; and 



pl.xxvi. f.4. See also p.817. 



Notes on the Wollongong Foraminifera. 



It is an interesting fact that most of the Jliliolince in the 

 Wollongong material were micromorphs. The natural habitat of 

 this family seems to be the shallow water near the shore; pos- 

 sibly micromorphism has resulted from unfavourable conditions. 



Lagenince were very numerous, and the species merge into 

 one another. Lagena striata was found sometimes with one, or 

 several apical spines, sometimes without any at all, merging into 

 corresponding forms of L. sulcata. Forms like L. hispida fre- 

 quently have their necks ringed after the manner of L. sulcata, 

 and L. sulcata frequently has a neck like that of L. hispida; 

 some specimens oi-L. sulcata were provided with one or more 

 apical spines, and had their necks ringed with parallel ring-like 

 ridges (cp. C.R., pl.lviii. f.4) instead of the usual spiral ridge. 

 There does not seem to me to be any marked division line 

 between these species of Lagena, but they merge into one another 



