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PALUDBSTEnflD.E.
Family PALUDESTRINID.E [=Eydrobiid(B].
Subfamily PALUDESTRININ^.
Shell small, corneous, fusiform, narrowly rimate or imperforate.
Distribution. AVorld-wide.
Genus PALUDESTBINA.
Jli/drobia, Havtinann, 1821,_reec Leacli in Ooleoptero, 1817.
Paludestrina, d'Orbigny, Voy. Aiuer. Merid., Moll. 1840, p. 381.
TYPE, P. auberiana, d'Orb.; S. America.
llange. World-wide.
Auiiiials having no eyes on the tentacles, these being placed
outwardly at their base; operculum horuy, spiral, resembling
Littorina. An iahabitaut of both fresh aad brackish water.
Subgenus BELaRANDIA.
Belyrmidia, Bourguignat, Cat. Moll. Ter. Fluv. Env. Paris, 18G9,
p. 15.
TrPE, Blthinella gibha, Drapernaud; France.
llange. Europe; Asia.
Shell having one or two ronnded swellings on the last whorl,
these, as the author explains at some length, being quite different
from those caused by rest periods.
135. Paludestrina (Belgrandia) miliacea, A^evill.
Paludestrina (Belgrandia) miliacea, Nevill, J. A. S. B. xlix, pt, 2,
p. 161; op. cit., 1, p. 158, pi. vii, fig. 7; Nevill, Hand List',
pt. 2, p. 52 [aa Hydrobia {Bythinella)].
Original description:—Testa minuta, vix rimata, conicoelongatula,
solida, paruni nitida, albido-viridula, laevigata; spira
paululum producta, apice miauto, acutiusculo; anfr. 5, couvexiusculi,
ultimis duobus rapide accrescentibus, ultimo basi
subplanulato, ad apertuvam gibbositate crassa circumscripto;
apertura ovato-rotundata, intus incrassata, peristoma continuum,
valide incrassatum, margine externo arcuato, basi sinuato, margine
eolumellari subangulatim contorto, subreflexo. Operculum
sat profunde imraersum, tenue, pellucidum, vitreum.
Alt. about 2-75, diam. 1-75 mm.
Hab. Port Canuiiig (iVevill, Mainwaring).
Type in Indian Museum, Calcutta.
Siibvar. gibbosula.
Hah. Port Canning {Stoliczica).