216 Mr. BE. A..Smith on 
cauda purpureo-nigra ornata; anfract. 7, primi 2 leves politi, 
tertius longitudinaliter tenuiter costatus, ceeterl superne decliviter 
planulati, medio acute angulati, infra angulum plani, costis crassis ~ 
margine acutis ad bases contiguis (in anfr. ultimo ad 13 fere basi 
continuis) instructi, ubique transversim tenuiter striati; apertura 
longit. teste totius 3 equans; columella obliqua, simplex, levis- 
sime torta; labrum costa ultima incrassatum, supra angulum 
obsolete sinuatum ; canalis brevis, obliquus. 
Long. 8 mill., diam. 3. 
Hab. Porto Cavalho, 8. America. 
This species must not be mistaken for Mangilia semzassa, 
Gould, from which it differs in having more ribs or plications 
and also in the style of painting. ‘The size and shape are 
similar. 
Pleurotoma (Mangilia) filicincta. 
Testa fusiformi-turrita, nitens, sordide albida, lineis spiralibus fili- 
formibus (in anfr. ultimo ad 12 in penult. 4-5) cincta; anfract. 
64, primi 14 vitrei globosi, cateri superne declives, deinde 
rotunde angulati basique ad suturam contracti, costis longitudi- 
nalibus obliquis flexuosis (in anfr. penultimo ad 13, in ultimo 
versus labrum levi haud costato circiter 10-11), inferne sensim 
evanescentibus; anfr. ultimus infra medium contractus, cum 
columella caudam brevem transversim striatam effingens ; aper- 
tura pyriformi-ovata, longitudine spiram eequans ; labrum superne 
leviter sinuatum, margine acutum, extra varicosum; canalis 
brevis, levissime recurvus. 
Long. 13 mill., diam. 5. 
Hab. Japan (A. Adams). 
The chief marks of distinction in this form are the large 
apex, the third part of the body-whorl near the labrum lack- 
ing the coste, and the very fine reddish spiral lines, the last 
character existing in costulata, Dunker, from which it differs 
in size, the absence of all spiral sculpture, and the character 
of the ribbing. : 
Pleurotoma (Mangilia) ordinaria. 
Testa oblonga, subturrita, fusco-lutea ; anfract. 7, primi 2 leves, 
ceteri ad latera parum convexi, costis subacutis 10-11 (im anfr. 
ultimo ad basim productis) instructi, spiraliter crasse striati, vel 
tenuiter lirati, liris paucis hic illic quam cetere majoribus ; aper- 
tura angusta, longit. totius 2 equans; columella simplex ; labrum 
incrassatum, superne parum sinuatum; canalis brevissimus. 
Long. 73 mill., diam. 23. 
Hab. Chile and Peru. 
This species appears to be allied to P. dutescens, Reeve. 
