Freshwater Molluscs of India: An Insight of into Their Diversity, Distribution and Conservation - Aquatic Ecosystem: Biodiversity, Ecology and Conservation - page 177

Table 11.4 (continued)
Name Key character for identii cation Habitat Distribution

Planorbis planorbis tangitarensis
(Germain)

Shell fl attened, compressed and angulations not
very distinct, with distinct 5 whorls

Occurs in lakes, wetlands Kashmir

Planorbis rotundatus (Poiret) Shell thick, rounded; whorls 5, gradually

increasing, rounded without any angulation;
aperture oval

Occurs in lakes, wetlands Kashmir

Gyraulus barrackporensis (Clessin) Whorls rapidly increasing, boy whorl more

rounded and more dilated at its extremity,
aperture very oblique

Various types of slow running and stagnant
water bodies

Uttar Pradesh; West Bengal

Gyraulus convexiusculus (Hutton) Shell small, discoidal, with 4-5 depressed

whorls, umbilicus wide, transparent, periphery
sub-angulate, closely and obliquely stria tulate;
aperture overtly lunate,

Various types of running and stagnant water
bodies

Throughout India

Gyraulus euphraticus (Mousson) Compressed body, strongly carinate, opaque,

sculptured coarsely and irregularly, body whorl
deviates from spiral whorl

Lakes, ponds and slowly running rivers and
streams with rich plant growth

Bihar, Manipur, Jharkhand,
Punjab, West Bengal

Gyraulus labiatus (Benson) Body whorl with remarkable deviation from

main axis, a whitish rib present within the
aperture

Small- to large-sized stagnant water bodies with
rich vegetation, slowly running rivers

Andhra Pradesh, Himachal
Pradesh < Madhya Pradesh,
Maharashtra, Tamil Nadu,
Tripura, Uttar Pradesh, West
Bengal

Gyraulus ladacensis (Nevill) Body whorl rounded not angular but slightly

compressed in the middle towards the
extremity, suture deep, umbilicus less wide,
aperture obliquely ovate

Old water lakes with rich vegetation Ladakh

Gyraulus pankongensis (von Martens) Body whorl convex above and below neither

carinate not angular, deeply umbilicate

Cold water lakes Kashmir

Gyraulus rotula (Benson) Aperture ovate-lunate, sculpture with

longitudinal striae sometimes so strong to be
called subcostal

Lakes, ponds, large water bodies with rich
vegetation

Maharashtra, Uttar Pradesh

Gyraulus saltensis (Germain) Body whorl very large and well dilated at the

extremity, not deeply umbilicate

Salt range Punjab

Camptoceras lineatum (Blanford) Shell with strong spiral lines, whorls 2 ½,

well- defi ned suture and angulated at its margin

Lakes, ponds and their effl uents. Slowly
running streams with rich microphytes

Assam, Manipur: Loktak
Lake, Uttar Pradesh