OF CONCHOLOGY. 



M. Kauaiensis, Pease. Plate 3, fig. 6. 



T. crassa, elongata, tenebro-fusca, aut fusco-cornea ; spira tur- 

 rita, supra longitudinaliter curvato-plicata ; anfr. 8-9, plano- 

 convexis, transversim impresso-striatis ; apertura oblongo-ovata, 

 postice angulata, ad basin rotundata, intus olivacea; labro acuto ; 

 columella vix arcuata, Isevi ; operculo nigricans. 



Long. 50, Diam. 15 mill. 



Hah. Kauai. 



Same type as "iHf. Newcombii." 



M. CONTIGUA, Pease. 



T. elongata, tenui, omnino transversim regiilariter tenuiter 

 sulcata aut impresso striata, cornea ; sutura impressa ; anfr. 8, 

 planulatis ; apertura elongato-ovata, superne angulata, intus 

 albida ; labro acuto ; columella vix incurva : operculo fusco. 



Long. 28, Diam. 9 mill. 

 Hah. Kauai. 



Also allied to "ilf. JSfewcombii." It is not plicate and regu- 

 larly finely grooved or striate throughout. 



