650 MR. HARPER PEASE ON THE [ Dec. 9, 
See: 2. 
Amastra assimilis (Newe.). Amastra mastersii (Newc.). 
affinis (Newe.). mucronata (Newe.). 
——— flavescens (Newe.). ~—— melanosis (Newe.). 
—— humilis (Newe.). nubilosa (Migh.). 
lineolata (Newc.). pusilla (Newe.). 
micans (Ptr.). —— rubens (Gld.). 
modesta (C. B. Ad.). -—— variegata (Ptr.). 
See. 3. 
petricola (Newe.). —— elongata (Newe.). 
—— soror (Newc.). 
Sec. 4. 
spirizona (Fér.). —— intermedia (Newe.). 
turritella (Fér.) = —— luctuosa (Ptr.). 
“‘luteola’’ (Feér.). —— cylindrica (Pir.). 
—— porphyrea (Newc.). —— sericea (Pir.). 
Ail the species of this genus are terrestrial. They are covered 
with an epidermis, more or less roughened and striate, occasionally 
smooth. Their colour is of a uniform dark brown, sometimes in- 
clined to chestnut on the smoother species, and occasionally relieved 
by light yellowish bands, at the suture usually. As the genus is re- 
presented on all the islands of the group, they present more variation 
in shape than those of the other genera, which may lead, when more 
fully known, to their separation. 
A. obesa (Newe.) and A. spherica (Pse.) are quite distinct from 
the other species. I have separated, under Sec. 2, a number of 
lighter growth, thin epidermis, sometimes reticulated; and three 
species under Sec. 3, of small size, thin, and outer lip simple and 
acute. A group inhabiting a separate range of hills on Oahu have 
been associated under See. 4. Although the extreme shapes appear 
to be widely apart, they are connected by intermediate forms. 
Genus 12. Lepracaartina (Gld.). 
. Leptachatina, Gould, Proc. Bost. Soc. 1848, p- 200; Mon. Hel. 
Viv. 1859, vol. iv. p. 563. 
1’. ovato-oblonga vel turrita, tenuis, vitrea, plerumque pellucida; 
plica columellari debili, sepe nulla; perist. simplici, acuto, 
recto. 
- Achatini- vel Bulimiformes. 
Leptachatina acuminata (Gld.).  Leptachatina lucida (Pse.). 
accincta (Migb.). obsoleta (Pfr.). 
—— chrysalis (Ptr.). —— sandwichensis (Pfr.). 
clausina (Migh.). sacatilis (Gul.). 
cylindrata (Pse.). scutilus (Migh.). 
kanaiensis (Ptr.). —— sculpta (Pfr.). 
