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Beddomeia waterhouseae, also known as Claytons Rivulet freshwater snail, is a species of freshwater snail in the family Tateidae. [2] This species is endemic to northern Tasmania in Australia. The holotype specimen was found in a very small tributary of Little Clayton's Rivulet and is held at the Australian Museum .
The snail takes 30–40 days to hatch and is then considered young (before sexual maturity). Sexual maturity begins between 4 and 16 months after hatching. The snail is relatively fast moving at about 8 mm/s. [3] The snail has a light grey or brown body, with its lower tentacles being long and almost touching the ground.
Adults snails have shell of greater height than width. The shells of newborn snails are 2.93–3.70 mm (0.115–0.146 in) long, and differ from those of adults in being wider than high. [ 11 ] The snail including the shell has a weight of about 2.8 g.
A snail is a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract
Pteropoda (common name pteropods, from the Greek meaning "wing-foot") are specialized free-swimming pelagic sea snails and sea slugs, marine opisthobranch gastropods.Most live in the top 10 m of the ocean and are less than 1 cm long.
The adults feed on small organic particles and seagrasses that are brought in with the tide. [6] Their habitat is a gently sloping intertidal zone with two high and two low tides each day. There are large differences in the duration of flooding and sea level between the two high tides each day, between seasons and between places nearer to or ...
The Vermetidae, the worm snails or worm shells, are a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha. [1] The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails".
The life-span for this species is up to seven or eight years, with the annual survival rate of adults about 50% (= 3% over five years, older adults suffer higher mortalities). [8] In winter, the snails may hibernate, but can become active again during warm spells. [6] Cepaea nemoralis is known experimentally to be a host for Angiostrongylus ...