HELICIDA. 45 
the lips united by a shining callus; columellar lip with a tooth. 
Hd. Ceres, Pfr. 
Phania, Albers, 1860. Shell umbilicated or imperforate, len- 
ticularly depressed, acutely carinate; whorls 43-5, the last 
shortly descending anteriorly, base convex ; aperture irregularly 
triangular or rhomboidal; peristome thickened, expanded ; 
columellar margin tuberculately dilated, the base reflected, 
appressed. H. pyrostoma, Fer. (xcvi, 88). Tsp. East Indies. 
Planispira, Beck, 1837. (Pusiodon [part], Swainson, 1840.) 
Shell with open (rarely covered) umbilicus, orbicularly de- 
pressed ; spire plane or immersed in the middle;. whorls 4-5, 
the last large, declining in front; aperture obliquely oblong- 
ovate; peristome acute, widely expanded, reflected, margins 
approximating, the basal margin sometimes tuberculate. 7. 
coluber, Beck (xevi, 90). 26 sp. East Indies. 
Philina, Albers, 1850. (Pusiodon, Swains., 1840. Obbina, 
Semper, 1873.) Shell umbilicate, orbicularly depressed, apex very 
obtuse; last whorl deflected in front; aperture oblique or hori- 
zontal; peristome thickened, reflected, the margins joined by a 
callus, which impinges on the umbilicus. H. planulata, Lam. 
GEOoTROCHUS, Beck, 1837. Shell imperforate or perforation 
covered, trochiform, with elevated spire and flattened whorls; 
last whorl carinated or angular, base subplane ; aperture angular, 
very oblique; superior lip slightly reflected or expanded, inferior 
lip thicker and reflected. H. Ferussaci, Lesson (xev, 73). 131 
sp. Solomon and Louisiade Is., New Guinea, Australia. 
Pseudopartula, Pfr., 1855. H. galericulum, Mouss. Java. 
AcAVuS, Montfort, 1816. (Otala, Schum.,1817.) Shell imper- 
forate. globose-turbinate, oblique ; whorls 3-4, rapidly increasing, 
the last ventricose ; aperture oblong, oblique; columella oblique, 
wide, covered by an excavated callus; peristome thick, widely 
reflected, the extremities united by a shining callus. H. hema- 
stoma, Linn. (xev, 75). 8 sp. Ceylon. 
ALBERSIA, H. Adams, 1865. H. granulata, Quoy. 3 sp. New 
Guinea. 
HELICOPHANTA, Beck, 1837. (Liostoma, Swains., 1840. Eury- 
cratera, Ads., 1855.) Shell with open or covered umbilicus; 
thin, ovately oblong, spire short, scarcely elevated ; whorls 34—4, 
very rapidly increasing, the last inflated; aperture large, 
obliquely oblong-ovate; lip subexpanded, slightly thickened, 
margins joined by a usually thin callus, columellar margin 
dilated, reflected. H. magnifica, Fer. (xcvi, 82). 9 sp. Mada- 
gascar. 
PANDA, Albers, 1860. (Eurycratera, Ads., 1855, part.) Shell 
globosely ovate, thin, striate, granulately decussated by spiral 
lines ; spire obtuse, whorls 3-4, rapidly increasing, the last large, 
swollen; aperture scarcely oblique, rounded-ovate ; peristome 
