Freshwater Molluscs of India: An Insight of into Their Diversity, Distribution and Conservation - Aquatic Ecosystem: Biodiversity, Ecology and Conservation - page 168

Bellamya dissimilis (Mueller) Spire high, narrow and swollen, body whorl

with one slightly elevated ridge or broad and
obscure, pale spiral band

Prefers stagnant waters, large wetlands, paddy
fi eld and even temporary water bodies. It is
rarely found form river

Common throughout India
Up to the elevation of 6,000 ft

Bellamya micron (Annandale) Shell thin, transparent, small, ovately conical,

fi nely, minutely striate; whorls 5, rounded
aperture sub oval, outer lip thin

Habitat unknown Manipur Valley (known by

type)

Angulyagra microchaetophora
(Annandale)

Shell small, thin, imperforate, sharply
acuminate, a blunt peripheral ridge on the body
whorl; columellar strongly arched, outer lip
sharp. Spiral whorls with two fi ne spiral ridges

Occurs in ponds on fl oating grass stems and
longer part of plant that fl oat on the water
surface

Nagaland, Assam, Manipur

Angulyagra oxytropis (Benson) Shell large, broadly conical, perforate with

prominent spiral ridges, outer lip thin but not
sharped

Occurs in large lakes, ponds, wetland, on
fl oating grass stems

Manipur Valley, Meghalaya,
Tripura (South)

Cipangopaludina lecythis (Benson) Shell olive green when fresh, spire conical,

apex acuminate, whorls tumid and fl attened
above, suture deep, aperture large and broadly
oval, outer lip sharp and tinged with black

Lakes and large wet lands Manipur Valley (Loktak lake,

Meghalaya, Tripura

Pila globosa (Swainson) Shell globose, infl ated body whorl, depressed

spire, suture shallow, colour bands present
inside the aperture

Lives in temporary water bodies which are dry
for at least one time per year. It inhabits large
wetlands, pool, ditches and occasionally in the
river

Assam, Bihar, Himachal
Pradesh, Jharkhand,
Maharashtra, Madhya Pradesh,
Meghalaya, Orissa, Rajasthan,
Uttar Pradesh, West Bengal

Va r. incrassatula (Nevill)
Va r. minor (Nevill)

Pila scutata (Mousson) Shell ovoid or semi-globose with large body

whorl, spire elongated, whorls descending
step-like, suture deeply impressed without
carination, olivaceous green with faint brownish
spiral bands in young adults

Creeks of estuarine tidal infl uence within
mudfl ats

Andaman and Nicobar Islands

Va r. compacta (Reeve)

Pila scutata compacta (Reeve) Shell larger, thicker and stouter with strong

vertical striations, columellar callus much
broader, aperture more ovoid, darker in colour
with faint transverse colour bands

Small pools, wetlands and sometimes in river
bed; creeks of estuarine tidal infl uence within
mudfl ats

Andaman and Nicobar
Islands, Jharkhand

Pila theobaldi (Hanley) Shell large, whorls globose, umbilicus widely

open, aperture without colour bands

Lakes, rivers, small wetlands Manipur, Meghalaya, Tripura

Pila virens (Lamarck) Body whorl highly infl ated and shouldered

above; spire short, suture deep and distinctly
canaliculated, aperture ovate

Estuarine backwater; wet lands, lakes, pools,
paddy fi elds

Andhra Pradesh, Kerala,
Maharashtra Tamil Nadu

(continued)