What is allopeas clavulinum?

Allopeas clavulinum, commonly known as the horned snail or the pointed horn snail, is a species of small freshwater snail in the family Lymnaeidae. It is native to South America and is found in various habitats such as streams, rivers, and ponds.

The shell of Allopeas clavulinum typically measures less than 7 mm in height and is characterized by its pointed apex, which gives the snail its name. The shell's color varies from light to dark brown with a slightly translucent appearance. The body of the snail is grayish-brown with a slightly darker head.

Allopeas clavulinum feeds on algae and detritus, and is known to breed throughout the year. It is a hermaphrodite, meaning that it has both male and female reproductive organs, and can self-fertilize. The eggs are laid underwater and hatch into small, transparent larvae.

This species of snail is commonly used as a biological indicator of water quality because it is sensitive to changes in water chemistry and pollution.