466 Mr. A. Adams on the Species of 
perforata, tenui, rufo-fusca, oblique striata; epidermide in lineis 
elevatis radiantibus disposita, ad peripheriam in ciliis modicis pro- 
ducta; anfract. 6, planis, ultimo ad peripheriam acute angulato, 
basi convexo; apertura obliqua, lunata; peristomate recto, acuto. 
Lat. 6 lin., alt. 3 lin. 
Hab. Sado, Awa-Sima. 
Most like H. ciliosa, Pfr.; but the outline is more conical, 
and the epidermis at the periphery i is deren into longer 
hair-like projections than in that species. 
34. Helix (Plectotropis) trochula, A. Ad. 
H. testa orbiculato-conica; spira elata, umbilico lato et profundo 
perforata, tenui, rufo-fusca; epidermide in lineis obliquis inter- 
ruptis disposita, ad peripheriam in ciliis brevibus producta; an- 
fract. 6, planis, ultimo ad peripheriam acute angulato, basi con- 
vexo; apertura obliqua, lunata; peristomate acuto, expamnso, 
breviter reflexo. 
Lat. 64 lin., alt. 4 lin, 
Hab. 'Tsus-Sima. 
A larger and more conoidal species than H. setocincta, and 
with the epidermis forming raised, radiating, but interrupted 
lines, and with the ciliary fringe at the periphery much 
shorter. 
35. Helix (Pleetotropis) scabricula, A. Ad. 
‘HH. testa orbiculato-conoidali, late umbilicata, ochraceo-cornea, squar- 
rosa ; spira depresso-conica; anfract. 64, convexiusculis, ad peri- 
pheriam subangulatis; epidermide in squamulis elongatis, ra- 
diatim dispositis producta; apertura parva, angusta, lunata ; 
peristomate breviter reflexo. 
Lat. 44 lin., alt. 3 lin. 
Hab. Awa-Sima. 
Of the same form and with the same rough scaly surface as 
HH. squarrosa, only smaller and with a more elevated spire 
and narrower umbilicus. 
36. Helix (Patula) paupera, Gould. 
Hab. Matsumai, Hakodadi, Olga Bay. 
37. Helix (Patula) elatior, A. Ad. 
H. testa orbiculato-conica, oblique costulata, late umbilicata; spira 
conica, elatiuscula; anfract. 44, planis, ad suturas marginatis, ul- 
timo ad peripheriam acute carinato; apertura perobliqua, rotun- 
dato-lunata; peristomate simplici, acuto. 
Lat. 34 lin., alt. 2 lin. 
Hab. Dagelet Island. 
A larger and more conical species than H. paupera, Gould, 
