28 



minea, apice castanea, antice erubescente : anfr. 6 convexis, 

 sutura impressa, epidermide fusco hie et illic obtectis ; apertura 

 ovata, labro simplici intus incrassato, rosaceo, fauce alba, plica 

 tenui ; imperforata. Long, f , lat. f poll. 



A plain species, but well marked by its colors, especially by 

 that of the aperture. 



AcHATiNELLA NucLEOLA. Tcsta solida. impcrforata, ovato- 

 globosa, livido-castanea, apice pallida, ad suturam et anlice 

 albida : anfr. 6, postice subtabulatis : apertura rotundata, labro 

 simplici; columella excavata,callo obtecto : plica parva. Long. 

 /^, lat. -1- poll. 



A small, solid species, of a livid hue, whitish at tip and the 

 neighborhood of the suture, and milk white just before the termi- 

 nation of the whorl at the aperture. 



AcHATiNELLA MICROSTOMA. Testa ovata imperforata, solida, 

 epidermide fusco-virescente : anfr. 6, ultimo ventricoso ; apertura 

 parva, ovato-rotundata, fauce livida ; labro simplici, intus incras- 

 sato ; columella profunde sinuosa, callo crasso obtecta ; plica 

 valida. Long, f , lat. /^ poll. 



Distinguished by its ovate form, dusky green exterior, and 

 small, strongly fortified aperture. 



AcHATiNELLA FULiGiNOSA. Tcsta impcrforata, ventricoso-ova- 

 ta, apice acuta, tenui, pallide virescente, epidermide nigricante 

 induta ; anfr. 6, supra sub-tabulatis, striis incrementi, et striis 

 volventibus inequalibus decussatis : apertura parva, semilunari ; 

 labro simplici, intus incrassato, fauce cserulescente ; plica acuta. 

 Long. iV, lat. I poll. 



Its ventricose form, coarse revolving striae and blackish epi- 

 dermis, distinguish it. 



AcHATiNELLA STRiATULA. Tcsta parva, ovato-elongata, nitida, 

 viridi, longitudinaliter concinne et creberrime striato-costata : 

 anfr. 7 convexis, ultimo partem dimidiam spirae aequante ; aper- 

 tura angusta, semilunari ; labro albido, incrassato. Long. /^, 

 lat. ^\ poll. 



Not unlike Bulimus ohscurus in general appearance. Distin- 

 guished from several similar species, by its more slender form 

 and by its beautifully barred surface. 



