178 



Helix (Nanina) scorpio. Testa rotundata, depressa, rubro- 

 castanea, fasciis radiantibus atro-purpureis tessellata, subtus baud 

 convexa : spira depressa, anfr. 4^ convexis. Lat. |, alt. f poll. 

 Hah. Feejee Islands. 



The above characters were drawn from the figure of a shell 

 which looks somewhat like Cyclosioma tigrinum. Its inhabitant is 

 most peculiar ; having, besides the usual anal lappet of Nanina 

 covering the mucus pore, six other smaller ones between this and 

 the shell, arranged in a double series along the back. 



Helix (Nanina) euida. Testa fragilis, obconica, oblique 

 striata, epidermide tenui subconcentrice et confertlssime rugosa 

 induta, coloribus sordide viridibus marmorata, subtus valde con- 

 vexa, perforata : spira anfr. 4^ planulatis, ultimo superne angu- 

 lato : apertura lunata ; labro acuto ad umbilicum reflexo. Lat. 

 j-, alt. f poll. Hah. Feejee Islands. 



The specimens collected appear to be immature, but the pe- 

 culiar minute wrinkling of the epidermis, somewhat like that on 

 Planorhis alhus and hirsutus, may serve to characterize it. 



Helix (Nanina) irradiata. T. conico-globosa, tenuis, im- 

 perforata, albida, supra purpureo radiatim tessellata, lineis incre- 

 menti acutis confertim striata, subtus rotundata : spira anfr. 6 

 convexis, ultimo sub-angulato : apertura transversa, lunata ; labro 

 acuto, ad columellam incurvato, vix reflexo. Lat. ^^ alt. f poll. 

 Hah. New Holland. 



A singularly-colored Helix, in shape more like H. Cuhensis 

 than any other which I recollect. The colors are arranged some- 

 what like those on Bulimus vexillum. 



Helix (nanina) rubricata. Testa globoso-conica, solida, vix 

 perforata, supra nitida, rufo-castanea, striis radiantibus gregatim 

 dispositis et striis volventibus decussata, infra glaberrima, livido- 

 castanea, ad centrum declivis : spira anfr. 6 convexis, amplis; 

 sutura submarginata : apertura semilunaris ; fauce livida ; 

 labro simplici, ad columellam reflexo, albo. Lat. 1, alt. f poll. 

 Hah. Lebouka, Feejee Islands. 



In shape and size like H. zaieta and H. irregularis ; but in all 

 other respects it is like H. velulina, Sowb., to which it is very 

 closely allied. Perhaps it is H. Nouleti, Le Guillou. 



