20 



portione sinistra fere horizontali, recedente, subreflexa. Lat. ^y, 

 alt. ^ 3 g-. Hab. Kauai, Sandwich Islands. 



A very beautiful and polished symmetrical shell ; beneath like 

 H. interna and indentata. 



Helix cicercula. T. depresso-globosa, tenuis, sub-opaca, im- 

 perforata, albido-virescens, striis incrementi conspicuis et striis 

 volventibus sparsis insculpta : infra rotundata, fovea centrali 

 modica : spira anfr. 5 convexis, ultimo angulato : apertura lu- 

 nata ; labro simplici ; columella superne vix reflexa. Lai. £, 

 alt. ^y poll. Hub. Mountains of Hawaii. 



Distinguished from the other small subglobular shells here 

 mentioned by its pea-green color and more globular shape, both 

 above and beneath, its deeper umbilical pit, and by having no 

 semblance of contortion of the columella. 



Helix cryptoportica. Testa parva, orbiculari-depressa, ad 

 apicem acuta, tenuis, pellucida, nitida, luteo-virescens, leviter 

 striata : infra rotundata, imperforata, fovea parva centrali : spira 

 anfr. 5£ convexiusculis, ultimo carinato ; sutura impressa, mar- 

 ginata : apertura lunata, labro simplici ; columella superne valde 

 intorta, sinum angustum centralem formante. 



Very similar to H. subrutila, Mighels, but is distinguished from 

 it by the want of revolving striae, and by the manner in which 

 the columella joins the whorl above. 



Helix cttltrata. T. parva, orbicularis, depressa, glaber- 

 rima, lucida, fusco-viridis, infra, rotundata, in foveam umbilica- 

 lem devexa, imperforata : spira anfr. 5 convexis, ultimo superne 

 carinato ; apice obtuso ; sutura marginata : apertura angusta, lu- 

 nata, labro simplici ; columella obliqua, callosa, alba, planulata, 

 inflexa, inferne dentem simulante. Lat. -£j, alt. T V poll. Hob. 

 Taheiti and Eimeo. 



A beautiful, smooth, lenticular, dark-green shell, not unlike H. 

 interna, Say, distinguished by its curious broad, white, inflected, 

 columellar lip. 



Helix pertenuis. Testa minuta, subglobosa, pellucida, nitidis- 

 sima, viridi-aurea, imperforata : spira depressa, anfr. 4J- con- 

 vexis, ultimo amplo, ad peripheriam angulato, infra sulcis remotis 

 radiato : apertura ampla, lunata ; labro simplici. Lat. $, alt. T V 

 poll. Hab. Aurora Island. 



