Biology:Pachydrobiella

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Pachydrobiella brevis is a species of freshwater snail, an aquatic gastropod mollusc in the family Pomatiopsidae.

Pachydrobiella brevis is the only species in the genus Pachydrobiella.[1]

Distribution

The distribution of Pachydrobiella brevis includes Khong Island in the Mekong River, southern Laos.[1] The type locality is Khong Island.[1] This species is probably endemic to the Khong Island region.[1]

Drawing of abapertural view of the shell of Pachydrobiella brevis

Description

The shape of the shell is ovate-conic.[1] The shell is thick and smooth.[1] The smooth shell is unique in the tribe Jullieniini.[1] The outer lip is thick with growth lines.[1]

The width of the shell is 2.5 mm.[2] The height of the shell is 2.2–3.6 mm.[1]

Thiele (1928)[3] and Brandt (1970) made a drawing showing smooth teeth in the radula, but Davis (1979) showed multiserrate teeth in the radula.[1]

Ecology

Pachydrobiella brevis lives primarily in freshwater habitats that lack a current or have only a slight current.[1] However this species sometimes or rarely also lives also in places where the current is moderate or strong all the way to whitewater.[1]

This snail probably feeds on algae on stones.[1]

References

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Cite error: Invalid <ref> tag; no text was provided for refs named Davis 1979
  2. Cite error: Invalid <ref> tag; no text was provided for refs named Bavay 1895
  3. Cite error: Invalid <ref> tag; no text was provided for refs named Thiele 1928

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