Descriptions of New Species of Achatinella. 187 



Length of body whorl 0.15 inch (1 mill.). 

 Average weight 0.11 grain. 



Station. — Under stones in open country. T. L. G. ! 



Habitat.— Mokuleia, Oahn. T. L. G. ! 



Yar. b. — With a brown spiral line accompanying the suture. 

 Yar. c. — Larger, not so transparent. 



Habitat. — Kamoo, Waialua, Oahu. T. L. G. ! 



Remarks. — A clear, shining, transparent species, associated 

 with A. gummea Nob., but much smaller and of narrower form. 



15. Achatinella saxatilis. 



Plate VI. Fig. 15. 



T. dextrorsa, perforata, cylmdraceo-oblonga, tenui, nitida, perpellucida, 

 vitrea, sub lente levissime striata ; apice obtusula ; spira elongata ; sutura 

 siiuplici, leviter impressa ; anfr. 6, subconvexis ; ultimo ad aperturam 

 rotundato ; columella leviter arcuata, pallida, plica obsoleta ; apertura 

 late ovali; perist. simplici, pallide limbato ; marginibus conniventibus ; 

 dcxtro recto, arcuato ; columellari dilatato, patente ; parietali subcalloso. 



Shell dextral, perforate, cylindrically oblong, thin, shining, 

 transparent, vitreous, microscopically very finely striated; 

 apex rather obtuse ; spire elongate ; suture simple, lightly 

 impressed ; whorls 6, slightly convex ; the last rounded towards 

 the aperture ; columella slightly arcuate, pallid, with fold obso- 

 lete ; aperture broadly oval ; peristome simple, bordered with 

 white ; with margins joining in an unbroken curve ; dextral 

 margin unrefiected, arcuate ; columellar margin dilated, not 

 appressed ; parietal margin slightly callous. 



