90 AMERICAN MARINE CONCHOLOGY. 



Doubtful species. 



10. M. ORNATA, De Kaj. Fig. 179. 



Moll., New York, 107, t. 6, f. 104. 1843. 



Shell moderately solid, subconical ; its transverse exceeding its 



vertical diameter ; wiiorls fonr to five, convex ; the bodj'-wliorl 



very large, subinflated ; seven to nine distant revolving costai 



on its npper surface, which is separated from the simplj' striate 



surface beneath b}- an obsolete carina; spire not much elevated, 



faintlj' striate; umbilicus large and very profound; aperture 



rounded, oblique; lip thin and simple, entire. Bright red. 



Length 2.5, diam. 3.75 mill. 



Neic York. 



11. M. MULTiLiNEATA, De Kay. Fig. 180. 



Moll., New York, 109, t. 6, f. 108. 1843. 



Shell small, pyramidal; whorls four, convex, obtusel}' carinate; 



suture impressed; spire elevated; whorls with minute revolving 



stride, and three to four revolving ribs ; aperture suborbicnlar ; 



umbilicus entirely concealed by the reflection of the lip, but its 



place marked by a slight depression. Beautifully variegated by 



alternate yellowish-white and brown, or reddish-browu revolving 



lines ; lip with abbreviated red and white lines. 



Height 7.5 mill. 



New York. 



Genus ADEORBIS, S. Wood. 

 Ami. Mug. Nat. Hist. 530. 1843. 

 1. A. cosTULATA, Mollcr. Fig. 181. 

 Index Moll. Qrcen. 8. 1843. 

 Shell minute, white, thin, with crowded longitudinal ribs and 

 fine revolving strite on the base ; umbilicus deep ; aperture 

 rounded with continuous peristome; operculum multispiral, of 

 about eight volutions, the outer ones testaceous, the nuclear cor- 

 neous. 



Diam. 2.5 mill. 



Ifew England, northwards. (Eur.) 



Family JANTHIXID^. 



The animal has a proboscidiform head ; tentacles short and ob- 

 tuse, with pointed eye-pedicels at their bases, but without any 



