t^^l

ez PALUBESTEINIDiE.
solida, crassa, pallide viridula, polita, nitida (sub lente), obsolete
submalleata ; spira aculeiformis, subconcava, producta, apice peracutissimo;
anfr. 6, baud convexi, ultimus pertumidus, medio
subangulatus, basi applanatus, antice ad aperturam abrupte et
valide deflectus; apertura percontracta, perfecte rotundata, marginibus
continuis, valide incrassatis.
Alt. 3'5, diani. 2 mm.
Hab. Port Canning.
" This interesting form is easily recognized by the very acute
and concavely-exeavated spire, the subangulate last whorl,
flattened round the umbilical region; it is not spirally pitted,
as in most species of the genus, but appears absolutely malleated
or indented under a powerful lens."
The type is in the Indian Museum, Calcutta.
165. Stenothyra cMlkaensis, Preston.
Stenothyra chilkaensis, Pieston, Eec. Ind. Mas., Calcutta, x, 1914,
p. 300, fig. oil p. 298.
Shell minutely rimate, ovate, yellowish brown; whorls 5, the
first very small, the second large in proportion, the last also
large, convex, without sculpture; suture well impressed; perforation
reduced to a very narrow chink; labrum continuous;
aperture oblique, ovate.
Alt. 2-75, diam. maj. 2 (neajly), diam. min. 1-5 mm.
Bab. Barkul, Lake Chilka, Orissa, among weeds at the edge of
the lake.
Type in the Indian Museum, Calcutta.
166. Stenothyra orissaensis, Preston.
Stenothyra orissaensis, Preston, torn, cit.
Shell small, narrowly perforate, ovately turbinate, pale greenish
yellow ; whorls 5, regularly increasing, smooth, but for growth
markings, the last convex and rapidly descending in front;
labrum continuous, slightly erect; aperture strangulate, oblique,
oval.
Alt. 2-25, diam. maj., I'o mm.
Hab, Off Satpara, Lake Chilka, Orissa, at a depth of from 4 to
6 feet, close in shore (type); dead specimens were also taken at
Manikpatua at a depth of 4 feet.
Type in Indian Museum, Calcutta.