MANGILIA. 251 
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. stentuata, Moérch. Unfigured. W. Coast Central America. 
M. uNDATICUsTATA, Reeve. PI. 21, fig. 34. 
Shell fusiform, whorls slightly shouldered, with longitudinal, 
waved ribs; whitish. Length, 9°5 mill. 
Hab.? (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 (Cuming). 
M. runEBRis, Reeve. Pl. 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. HEXAGONALIS, Reeve. PI. 20, figs. 1, 4. 
Shell with six distant longitudinal continuous ribs, and rather 
close revolving striz ; yellowish white. Length, 8 mill. 
Philippines; N. Australia ; N. Guinea. 
The artificial and unnatural grouping of the Pleurotomide 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 W. 
hexagonalis. 
M. eracitenta, Reeve. Pl. 23, figs. 98, 88; Pl. 17, fig. 11. 
Shell yellowish white to yellowish brown, very slightly nar- 
