1 22 MITRA. 



M. QuoYi, Desh. PI. 36, fig. 71. 



Shell smooth, with faint impressed revolving striae; epidermis 



black. Length, 20 mill. 



New Ireland. 



This species, described and figured b}- Quoy under the name 

 of M. nigra, is very ditferent from the previously described M. 

 nigra of Chemnitz, and is scarcely equivalent to that figured by 

 Reeve ; it is, then, an unidentified species. I give a copy of one 

 of the original figures. 



M. ABBREVIATA, Sowb. PI. 36, fig. 69. 



Smooth, fointly striate at base ; epidermis black. 



Length, 28 mill. 



NeiD Zealand. 



Name proposed for M. nigra, Reeve (not Chemn. nor Quoy). 



M. NiTiDA, A. Ad. PL 36, fig. 13. 



Smooth, chocolate-brown, with a few impressed revolving 



lines. Length, -5 inch. 



• Habitat unknown. 



Probably a worn, juvenile specimen. 



M. iNFRAFASCiATA, Souvcrbic. PL 36, fig. 72. 



Smooth, slightly striate near the base ; brownish black, with a 

 yellowish band on the periphery, visible within the brown aper- 

 ture. Length, 8-9 mill. 



New Caledonia. 



Two specimens obtained. 



M. FUSCA, Swainson. PL 36, fig. 75. 



Smooth, very finely striated with punctures near the apex ; 

 slightly striate at the base, body-whorl slightly contracted in 

 the middle ; epidermis very dark brown, sometimes lighter 

 beneath the sutures. Length, 1-1-75 inches. 



Madeira, Atlantic Coast of Portur/al and So. France. 



M. Adansonii, Phil., described as from Gabon, in Guinea, W. 

 Africa, appears to agree fairly with this species ; it has not been 

 figured nor alluded to by the monographers. 



M. coRNicuLA, Linn. PL 36, figs, 74, 76-81. 



Horny brown ; smooth, impressed striae at the base. 

 Length, 1-1-25 inches. 



Mediterranean Sea ; Atlantic Coast of JV. Africa. 



