1869. ] CLASSIFICATION OF THE HELICTERIN&. 647 
See. 3. 
Bulimella abbreviata (Rve.) = Bulimella sordida (Newc). 
“‘bacca”’ (Rve.). solitaria (Newc.). 
colorata (Rve.). multicolor (Pfr.). 
germana (Newe.). 
This genus is restricted to the species with obtuse apex, represented 
by B. rosea (Swains.). They inhabit the westerly end of the island of 
Oahu. A short distance from their habitat several species are found, 
which we class under Sec. 2, not so robust in shape, with apex less 
obtuse, and surface rough. Sec. 3 comprises a few species still further 
removed from the type, being smooth, and the apex subacute. They 
might also with propriety be classed under the genus Achatinel- 
lastrum. 
Genus 4. EsurNeE.LA (Pse.). 
T. solida, polita, levis, oblongo-ovata, plica columellari valida, 
torta ; labro vix incrassato ; apice obtusiusculo, aut acuto. 
Eburnella casta (Newe.). Eburnella recta (Newe.). 
curta (Newe.). saccata (Ptr.). 
livida (Swains.). undulata (Newc.). 
porcellana (Newc.). 
Sec. 2. 
variabilis (Newc.). 
semicarinata (Newe.). 
This genus is established for a group of small, solid, polished 
species, resembling in their texture those of Helicter. They are 
of an elongate ovate form, the apex somewhat obtuse, and the co- 
lumellar fold prominent and twisted; lip but slightly thickened 
within, its edge thin. They inhabit the westerly end of the island 
of Oahu. 
I add two species from the island of Lanai, which are more nearly 
allied to this genus than any other. 
Genus 5. Parruuina (Pfr.). 
Partulina, Pfr. Mon. Hel. Viv. vol. iv. 1859, p. 516. 
Partulina compta (Rve.). Partulina rufa (Newe.). 
dwighti (Newc.). splendida (Newe.). 
gouldi (Newe.). tappaniana (C. B. Ad.). 
marmorata (Gld.). tessellata (Newc.). 
—— proxima (Pse.). virgulata (Migh.). 
Sec. 2. 
crassa (Newc.) grisea (Newc.). 
dolium (Pfr.). 
The above genus is confined to the islands of Maui and Molokai. 
