146 Gatliff and Gabriel : 



Genus Liotella, Iredale 191 5. 



In this genus are included Liotia annulata, Ten.-Woods, and 

 Liotia petalifera, Hed. and May. 



Genus Cyclostrema, Marryat 1818. 



This genus has been greatly split up, and some new genera 

 erected. We class ours already listed as follow : — 



Genus Elachorbis, Iredale 1915. 



This includes the shells already listed as Cyclostrema capera- 

 turn, Tate ; C. delectahile, Tate ; C. inscriptum, Tate ; C. harriettae^ 

 Petterd; and C. homalon, Verco. 



Genus Brookula, Iredale 1912. 



This includes the shells listed as Cyclostrema angeli, Ten.- 

 Wds. ; C. johnstoni, Beddome ; C. denseplicata, Verco ; and Scala 

 nepeanensis, Gatliff. 



Genus CirsoneMa, Angfts 1877. 



This includes the shells listed as Cyclostrema weldii, Ten.-Wds. ; 

 and C. microscopica, Gat. and Gab. 



Genus Lissotesta, Iredale 191 5. 



This includes the shells listed as Cyclostrema micra, Ten.-Wds. 

 (Iredale's genotype) ; C. porcellana, Tate and May; and C. con- 

 tabulatiim, Tate, var.. 



Genus Orbiteatella, Iredale 191 7. 



This includes the shells listed as Cyclostrema bastowi, Gatliff" 

 (Iredale's genotype) ; and C mayi, Tate. 



Genus Microdiscula, Thiele 1912. 

 This includes the shell listed as Cyclostrema charopa, Tate. 



Genus Skenella, Pfeffer 1886. 

 Skenella brunniensis, Beddome. 



1902. Cyclostrema bruniensis, Bedd. Prit. and Gat.^ 

 these Proc, v. XIV., for 1901, p. 99. 



