^J QLAB8LLA. 



at most a variety, and M. scnlari*, Jouss. (fig. 2f>), is also 

 synonymous. 



M. CHAPERT, Jousseaume. PI. 7, fig. 27. 



Vitreous white, or cream-color. Length, 7 mill. 



Habitat unknown. 

 A very doubtful species. 



M. PUMILA, Redfield. PL 7, fig. 28. 



Pallid corneous. Length, 5 mill. 



Port Louis Harbor, Mauritius. 



Described by A. Adams as M. pusilla, a name preoccupied by 

 Edwards for a fossil species. Jousseaume, in ignorance of the 

 substitution made by Redfield, proposed for it the name M. 

 Borbonica. 



M. SERRATA, Gaskoin. PL 7, fig. 31. 



White; columella four-plaited, lip closely denticulated. 



Length, 7*5 mill. 



Mauritius. 

 M. SCINTELLA, Jousseaume. 



An unfigured species, from an unknown locality, and referred 

 by its author to his genus or group Serrata, which includes H. 

 serrata, Gaskoin. In the absence of authentic figures or speci- 

 mens, it is not determinable. 



M. OSTEBT, Jousseaume. PL 7, fig. 32. 



White; columella four-plaited, lip minutely denticulated. 

 Length, 3 '8 mill. 



Habitat unknowns 



* Lip not denticulated. 



M. TRANSLUCIDA, Sowb. PL 7, figs. 29, 80 ; PL 8, fig. 35. 



White. Length, 7 -5 mill. 



Port Jackson, Australia. 



M. Strangei, Angas (fig. 30), is evidently a synonym, and I 

 place here also M. pygmsea, Sowb. (fig. 35), described ^thout 

 locality, from a single specimen in the Bell collection. It is the 

 M. attenuata, Reeve, of Weinkauff, and has also been sent to me 

 by Australian collectors under that name, but Reeve's species 

 is entirely different and does not belong in the same group. 



