RISSOID AR. 267 
Acicula, but malleated. 6 sp. France. A. Simoniana, Charp. 
(Ixxv, 35). Is perhaps terrestrial. 
LHOTELLERIA, Bourg. (Locardia, Folin.) Shell elongate- 
conical, apex obtuse, whorls rather convex, with impressed 
sutures ; aperture dilated below, columellar margin oblique. JL. 
apocrypha, Folin (Ixxv,36). France. 
PAULIA, Bourg., 1882. 2sp. France. B. Berenguieri, Bourg. 
BELGRANDIA, Bourg. (Stalion, Brusina.) Like Hydrobia, 
but smaller, with longitudinal swellings upon the body-whorl, 
fainter or obsolete on those of the spire. Operculum spiral. 22 
sp. Tertiary to recent. Southern Europe. B. gibba, Drap. 
(Ixxii, 58). 
mMicropyreus, Meek. Shell very small, subeylindrical, imper- 
forate, obtuse at the apex; body-volution small, or less than 
half the entire length; aperture rhombic-oval, very narrowly 
rounded, and more or less effuse; peristome apparently not 
continuous; outer lip thin, simple, most prominent below the 
middle. Laramie beds, Dakotah. B. minutulus, Meek (Lxxiii, 3). 
PALUDESTRINA, d’Orb. (Eupaludestrina, Thalassobia, Pseu- 
dopaludinella, Bourg.) Shell conic, more or less elongated, 
smooth, imperforate or nearly so, apex acute; aperture ovate; 
peritreme continuous, outer lip acute; inner lip not thickened. 
Operculum corneous. Scarcely distinguishable from Hydrobia, 
except by its habitat. Dzéstr.—Fresh water, West Indies, South 
America. B. pisctum, d’Orb. (xxii, 62). 
ALBERTISIA, Issel. 
Distr.—A. punica, Issel (Ixxv, 37). Tunis. 
Shell very small, cylindrical, with sutural costz, apex obtuse ; 
peristome continuous, reflected. Operculum unknown. May 
be an inoperculate shell. 
MouRenstTERNIA, Stoliczka. 
Distr.—Fossil in brackish or fresh-water deposits. Eastern 
Europe. MM. angulata, Esch. (1xxii, 59). 
Shell turriculated, thin, semipellucid; whorls frequently 
transversely costulate ; columella fissured at the base ; aperture 
subovate, angulated behind, rounded in front; margin very 
little dilated ; outer lip simple, scarcely varicose. Operculum 
unknown. 
This, as well as the succeeding group, may be classed here 
temporarily,although they appear to have been aberrant members 
of the family, at least, if not entirely distinct. 
PoTAMACLIS, Sandberger. 
Distr.—2 sp. Oligocene; Europe. P. turritissima, Forbes 
(Ixxii, 60, 61). 
