102 AMERICAN JOURNAL 



Shell ovate, solid, purplish black, purple within, spire short, 

 acute ; suture well impressed ; whorls five, convex, spirally striate, 

 strife sometimes obsolete on the middle of last whorl ; "aperture 

 ovate, sulcata above; outer lip crenulate on the margin ; inner 

 lip smooth, callous above; canal very short ; base spirally grooved. 



Planaxis fasciata, Pease. — Plate 12, fig. 17. 



Description. — T. abbreviata, ovata, ad basim lata, transversim 

 tenuissime striata ; apertura aperta, lata, ovata ; columella valde 

 incurva ; labro intus incrassato ; pallide plumbca, rufescente- 

 castanea fasciata, columella fusca tin eta. 



Hab. — Paumotus. 



Shell abbreviate, ovate, wide at base, transversely finely 

 striate ; aperture open, wide, ovate ; columella strongly incurved ; 

 lip thickened within ; pale lead color, banded with reddish chest- 

 nut, columella stained with dark brown. 



Remarks. — A single specimen of the above was accidentally 

 discovered among the Laimadontas from the Paumotus. Being 

 so distinct from any described species from Polynesia, I do not 

 hesitate to describe it. 



Torinia discoidea, Pease. — Plate 12, fig 18. 



Description. — T. depressa, discoidali ; concentrice quadrigra- 

 noso-costata, ad peripheriam costis duabus granulosis marginata, 

 iuterstitiis sulcata; spira vix elevata; basi convexa, tenuiter 

 granoso-costata ; sutura profunde sulcata ; umbilico magno, lato ; 

 crenato ; alba, radiatim flavescente aut castanea strigata. 



Dimensions. — Diam. 6, alt. 2} mill. 



Hab. — Paumotus. 



Shell depressed, discoidal, concentrically granosely ribbed, 

 ribs four, periphery bordered by a granose rib on each side, 

 interstices deeply grooved ; spire slightly elevated ; base convex, 

 finely granosely ribbed ; sutures deeply grooved ; umbilicus very 

 wide, open to the apex, crenate. White, radiately striped with 

 yellowish or light chestnut. 



