133 



Sdccinea vEsicALis. Tcsta tenuissima, fragilis, lucida, late 

 ovata, depressa, gradibus setalis undulata, epidermide straminea 

 induta : spira anfr. 3, ulliino magno, patulo, alteris spiram par- 

 vam formantibus : apertura subovalis, ad basim late rotundata, 

 longitudinis ^ equans ; plica columellari conspicua. Long, y*^, 

 lat. I ; alt. f poll. Hah. Mauna Kea, Hawaii. 



About the shape and size of S. rubescens. A delicate, very- 

 ample species. 



SucciNEA LU5IBALIS. Tcsta mediocris, ovalo-conica, tenuis- 

 sima, sublucida, pallide virens, leviter striata, subtus gibbosa : 

 spira acute conica ; anfr. 3 convexiusculis, ultimo ventricoso, 

 versus suturam declivi : apertura rotundato-ovata ; columella 

 valde arcuata, callo induta ; plica mediocri. Long, ^f^, lat. J>-(j, 

 all. ^j poll. Hab. Kauai, Sandwich Islands. 



Its dull aspect, conical spire and ventricose form are its dis- 

 tinctive marks. It resembles small specimens of Limnea catas- 

 copiu7n. Say. 



SucciNEA HUMEROSA. Tcsta ovata, depressa, sub-rhombea, 

 sublucida, striis incrementalibus rugosa, sulcis raris volventibus 

 interdum arata, dilute virens, et interdum rubrlcans : spira anfr. 

 3, ultimo permagno, postice sub-angulato : apertura sub-ovalis, 

 postice amplificata ; labro dextrorsum decurrente ; plica columel- 

 lari conspicua. Long. }, lat. f , alt. -^ poll. Hab. Mountains of 

 Taheiii. 



About the size of S. amphibia, and has a peculiarly broad 

 aperture on account of the outward sweep of the posterior por- 

 tion of the lip, and may be known by the angular shoulder on 

 the last whorl. 



SucciNEA CROCATA. Tcsta pinguis, sub-solida, sub-opaca, 

 ovato-globosa, saturate crocea, lineis incrementi exilibus et in- 

 terdum lineis inordinatis volventibus striata : spira brevis, acuta, 

 anfr. vix 3, convexis, sutura profundissima discretis, ultimo ven- 

 tricoso : apertura magna, rotundata-ovata ; columella carinata 

 sub-incrassata, baud sinuoso : intus calcarea. Long, f , lat. J- 

 poll. Hab. Upolu. 



May be easily known by its large size, inflated form, and its 

 peculiar color. The spire is remarkably contorted. 



