140 
expanso, umbilicum parvum, parum profundum partim obtegente ; 
colore variabili, albido, striis vel vittis fuscis et nigris transversis 
diverse lineato. 
Long. a3 lat. 2 poll. 
Hab. Lettui, Oahu. 
Shell elongately conical, solid; whorls 7, slightly rounded, mar- 
gined above ; aperture small, somewhat contracted ; lip subreflected 
below, acute above, thickened within; columella short, slightly twisted, 
with an expanded callus partially covering a shallow small umbilicus; 
colour variable; ground white variously banded and striped trans- 
versely with brown or black. 
This species, like the 4. multilineata, is drawn from the group of 
A. mustelina, the variations in character, with different localities and 
a peculiarity of habits in each, demanding their separation. 
28. ACHATINELLA rumosa (Pl. XXIII. fig. 28). A. testa cylin- 
drica, ovata, perobscure cornea, tenui, nitente; anfractibus 7, 
plano-conveais ; sutura subimpressa ; striis longitudinalibus, bene 
eapressis, numerosis ; apertura ovata; labro simplici, albido-fim- 
briato ; columella brevi cum dente lamellari albo, vitta fusco-nigra 
cum altera rubicunda subjacente anfractus infra suturas permeante. 
Long. =; lat. = poll. 
Hab. Manoa, Oahu. 
Shell cylindrically ovate, very dark, corneous, thin, shining; whorls 
7, plano-convex ; suture slightly impressed ; striz numerous, longi- 
tudinal, and strongly developed ; aperture ovate; lip simple, edged 
with white’; columella short, with a lamelliform white tooth. A dark 
brown band, accompanied by an obsolete reddish one below, traverses 
the whorls beneath the suture. 
29. ACHATINELLA LINEOLATA (Pl. XXIII. fig. 29). A. testa elon- 
gata, turriformi ; anfractibus 6, ventricosis, nitidis ; sutura sim- 
plici ; apertura ovata; columella dente obliquo, plicato munita; co- 
lore epidermidis luteolo, in anfr. ultimo lineis ziczac brevibus coloris 
umbrosi ad longitudinem dense signato. 
Long. a3 lat. & poll. 
Hab. Hawaii. 
Shell elongate, turreted; whorls 6, rounded, polished, shining ; 
suture simple; aperture ovate; columella with an oblique plaited 
tooth ; colour of epidermis yellowish ; on the last whorl thickly lined 
longitudinally with umber-coloured markings. 
The large island of Hawaii has yielded to our explorations but 
three species, all of which are herein described. 
30. ACHATINELLA NiTIDA (Pl. XXIII. fig. 30). A. testa tenui, 
levi, subcornea, nitida, pellucida, ovato-conica; anfractibus 6, ven- 
tricosis, supra marginatis ; apertura ovata ; labro subcrasso ; colu- 
mella in pliculam obliquam, contortam, albidam desinente. 
Long. =; lat. = poll. 
Hab. EB. Mani. 
