MANGILIA. 25 1 



M. CEREA, Carpenter. A single immature specimen described, 

 but not figured. Panama. 



M. LEVIDENSIS, Carpenter. Puget Sound and Neah Bay. 



M. ALBOLAQUEATA, Carpenter. From an imperfect, worn speci- 

 men ; lip broken. Panama. 



M. HAMATA, Carpenter. Unfigured. Panama. 



M. STELLATA, Morch. Unfigured. W. Coast Central America. 



M. UNDATICOSTATA, Reeve. PI. 21, fig. 34. 



Shell fusiform, whorls slightly shouldered, with longitudinal, 

 waved ribs; whitish. Length, 9 '5 mill. 



Hob. ? (Reeve) ; Cape York, Australia, and 



N. Guinea (Brazier). 

 M. CAVERNOSA, Reeve. PI. 21, fig. 26. 



Shell narrowly shouldered ; ribs oblique, rather narrow ; white, 

 the shoulder light chestnut, with sometimes a few chestnut spots 

 on the body-whorl. Length, 9-10 mill. 



N. S. Wales (Cox) ; Philippines (CumingX 



M. FUNEBRIS, Reeve. PI. 24, figs. 27, 18. 



Shell smooth, the ribs rather solid, obtuse, with wider inter- 

 spaces ; yellowish brown, broad banded with chestnut, ribs 

 lighter colored than the interstices. Length, 9-11 mill. 



Philippines. 



M. pusilla, Reeve (fig. 18), appears to be identical. 



M. HEX AGON ALIS, Reeve. PI. 20, figs. 1, 4. 



Shell with six distant longitudinal continuous ribs, and rather 

 close revolving striae ; yellowish white. Length, 8 mill. 



Philippines; N. Australia; N. Guinea. 



The artificial and unnatural grouping of the Pleurotomidse is 

 well illustrated in this species, for M. obeliscus. Reeve (fig. 4), 

 which has a toothed aperture, and would therefore belong to 

 another section, is nevertheless specifically identical with M. 

 hexagonalis. 



M. GRACILENTA, Reeve. PI. 23, figs. 98, 88 ; PI. 17, fig. 11. 

 Shell yellowish white to yellowish brown, very slightly nar- 



