Helicides found in Japan. 465 
pheriam obtusim subangulato; apertura rotundato-lunata, per- 
obliqua; peristomate breviter reflexo, ad basim regulariter ar- 
cuato. 
Lat. 5 lin., alt. 23 lin. 
Hab. Kino-O-Sima. 
This species resembles soniew hk in form and colour //. 
Stimpsonz, Pfr.; but it is more depressed, the umbilicus is 
wide and perspective, and the peritreme has not the peculiar 
bend seen in H. genulabris and H. Stimpsont. 
28. Helix (Fruticicola) concinna, A. Ad. 
HH. testa orbiculato-depressa, rufo-cornea, tenui, perforata, umbilico 
modico, oblique strigosa, striis volventibus conspicuis decussata ; 
spira obtusa, elatiuscula; anfract. 5, convexiusculis, ultimo ad 
peripheriam rotundato; apertura lunata; peristomate recto, acuto, 
_ ad umbilicum reflexo. 
Long. 6 lin., alt. 4 lin. 
Hab. Tago. 
A thin light-horncoloured species, with the revolving striz 
very distinct, and with the peritreme sharp-edged. 
my ? Pees 
29. Helix (Aigista) Friedeliana, Martens. 
Hab. Nangasaki (Martens). 
I do not know this species. 
30. Helix (Plectotropis) ciliosa, Pfr. 
Hab. 'Tsus-Sima, Awa-Sima, Tabu-Sima. 
31. Helix (Plectotropis) squarrosa, Gld. 
Hab. Kino-O-Sima, Tsus-Sima, Tsaulian. 
32. Helix (Plectotropis) conella, A. Ad. 
H. testa orbiculato-conica ; spira depressa, umbilico modico, perfo- 
rata, ochraceo-cornea, tenui, squarrosa, oblique valde strigosa ; ; 
epidermide in lineis interruptis obliquis disposita; anfract. 6, 
planis, ultimo ad peripheriam acute carinato, basi convexo ; peri- 
- stomate acuto, expanso, et breviter reflexo. 
Lat. 5 lin., alt. 3 lin. 
Hab. Tabu-Sima. 
Most like H. squarrosa, Gld., in colour and surface, which is 
scabrous and scaly; but the periphery, instead of being rounded, 
is acutely keeled; and the umbilicus, instead of being large 
and deep, is moderate. 
33. Helix (Plectotropis) setocincta, A. Ad. 
H. testa orbiculato-conica ; spira depressa, umbilico lato et profundo 
