274 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETT. 



rotunclata ; columella arcuata, incrassata, albido-caerulescens. Long. 

 30, lat. 9-5 mm. ; long, apert, 10, lat. apert. 4-66 mm. 



Hal. — Lahaina, Maui (Baldwin). 



This pretty Melania is allied to M. OaJmensis, Pease, according to 

 Dr. A. Brot, the eminent writer on Melaniidae, to whom I sent 

 specimens, and who declared them to belong to an undescribed species. 



EXPLANATION OF PLATE XII. 



Fig. 1. Endodonta nuda, n.sp. 



2. Suceinea bicolorata, n.sp. 



3. ,, Tkaanumi, n.sp. 



4. Pteroditeus petasus, n.sp. 



5. Microcystis sericans, n.sp. 



6. Melania Baldwini, n.sp. 



7. Suceinea Garrettiana, n.sp. 



8. Thaanumia omphalodes, n. gen. et sp. 



9. Suceinea inconspieua, n.sp. 



10. ,, casta, n.sp. 



11. Amastra Frosti, var. unicolor, n.var. 



12. Suceinea Waianaensis, n.sp. 



