280 CYCLOSTOMID &. 
HAGENMUELLERIA, Bourg., 1882. 2sp. Algiers. P. Pechaudi, 
Bourg. 
CARDIOSTOMA, Sandberger. PP. trochulus, Sandb. Eocene; 
Europe. 
ReEawia, Gray. 
Syn.—Liarea, Gray. Hydrocena, Auct. (in part). 
Distr.—25 sp. Mauritius, Philippines, Polynesia. 2&. egea, 
Gray (Ixxv, 39). 
Shell turreted or turbinate, nearly smooth; perforated ; aper- 
ture oval; peristome continuous, straight or expanded. Oper- 
culum paucispiral, thin, corneous. 
CYCLOMORPHA, Pease. Shell turbinate,subglobose, solid, smooth, 
or Spirally striate, perforate; aperture nearly circular; peristome 
simple, somewhat thickened, connected on the columellar side 
by a thin callus. Operculum paucispiral. 2 sp. Polynesia. 
hk. flava, Brod. (lxxv, 40). 
OMPHALOTROPIS, Pfeiffer. Shell turreted or globosely turbinated, 
carinated around the umbilical perforation ; aperture oval; peri- 
stome expanded or simple. Polynesia. &. rubens, Quoy (1xxv, 
41, 42). 
JAPONIA, Gould, 1859. Globosely conical, whorls contiguous, 
but scarcely impinging ; umbilicus open; decussated by lamellar 
erowth-lines and revolving lire. Operculum thin, paucispiral. 
3 Japanese species. &. musiva, Gld. 
SCALINELLA, Pease, Shell scalariform, narrowly perforate ; 
whorls rounded, longitudinally costate, suture profound; lip 
subcireular, continuous, barely or not in contact, simple. Poly- 
nesia. Rk. Taheitensis, Pease (Ixxv, 43). 
ATROPIS, Pease. Shell elongate, sometimes cylindrical, rarely 
ovate, imperforate, in the species of ovate form narrowly per- 
forate; aperture ovate, occasionally circular; peristome con- 
tinuous, sometimes disconnected from the penultimate whorl 
and very slightly porrected. Last whorl frequently obtusely 
angulate on its periphery, of one color, usually pale yellow or 
reddish. Polynesia. &. Caledonica, Crosse (Ixxv, 44). 
Il. Pupinea. 
Purina, Vignard. 
Syn.—Eupupina, Pfr. Moulinsia, Grat. 
Distr.—42 sp. East Indies, Japan, Philippines, Australia. 
P. bicanaliculata, Sowb. (1xxv, 45). 
Shell subeylindrical, usually polished; aperture circular, 
peristome thickened, notched in front and at the suture. Oper- 
culum membranous, narrow-whorled. 
REGISTOMA, Van Hasselt. (Rhegostoma, Agassiz). Shell 
pupiform, thin, transparent, smooth, polished; whorls displaced, 
apex papilliform; peristome reflected, with a narrow channel 
