VOL V ARIA. 53 



M. SECALINA, Phil. PL .13, figs. 18-21. 



Yellowish or brownish white, more or less obscurely three- 

 banded. Length, 10 mill. 



Mediterranean Sea. 

 M. Galamelij Jousseaume (fig. 18), from Algiers, is made a 



synonym by Dr. Weinkauff, who has quoted it as an example of 

 his var. bizonata. The banding, however, is more or less visible 

 on all specimens, and his variety is not entitled to be so con- 

 sidered. M. rufescens*, Reeve vfig. 19 , is another probable 

 synonym. M. Lienardi, Jousseaume, said to come from Mauri- 

 tius, and Isle of Bourbon, is founded on two of Sowerby's 

 figures of this species. 



M.INFANS, Reeve. PL 13, fig. 23. 



Transparent white, mostty encircled by two faint brown lines; 



columella four-plaited. Length, 5 mill. 



Singapore; Tasmania. 



Erato pellucida, Tenison-Woods, from the latter locality, is an 

 unfigured species, but the description as well as specimens before 

 me agree very well with M. infant*. 



M. ATTENUATA, Reeve. PL 13, fig. 24. 



Yellowish white, body-whorl slightly attenuated below, lip 

 nexuous, columella obliquely four-plaited. Length, 8 mill. 



Sydney, New South Wales. 



This is the M. translucida of Weinkauff and of some Austra- 

 lian collectors ; the true translucida is a very different species. 



M. HETEROZONA, Jousseaume. ' PL 13, fig. 25. 



Vitreous white, with an obsolete central brown band. 



Length, 5 mill. 



Habitat unknown. 

 M. CYLINDRICA, Sowb. PL 13, fig. 2(i. 



Yellowish white, with broad and narrow darker bands, irreg- 

 ular in number ; columella three-plaited. Length, 6-T mill. 



St. Thomas, West Indies. 

 M. PEASII, Reeve. PL 13, fig. 27. 



Milk-white, very obscurely three-banded with fulvous. 



Length, 10 mill. 



Kingsmill Is., Polynesia. 



This species has been unfortunate in its names : it was first 

 described by Pease as M. cylindrica. but as that name was preoc- 



