Red Rimmed Melania

12/04/2021 Off By Andy Ptyushkin

Red Rimmed Melania, scientific name Melanoides tuberculata, is a species of freshwater snail with an operculum, a parthenogenetic, aquatic gastropod mollusc in the family Thiaridae.

The common name comes from the presence of reddish spots on the otherwise greenish-brown shell.

This species is native to northern Africa and southern Asia, but it has been accidentally introduced in many other tropical and subtropical areas worldwide. It has also been accidentally introduced to heated aquaria in colder parts of the world.

This species has an elongate, conical shell, which is usually light brown, marked with rust-coloured spots. An is present. In some places, such as in Israel, the shells are coloured in black or dark brown, probably to help conceal the snail on the background of the basalt rocks of the Sea of Galilee (Kinnereth).

The average shell length is about 20 – 27 mm or 30 – 36 mm, but exceptional specimens may be up to 80 mm long. Shells of this species have 10 – 15 whorls.

Southern Asia

Southern Asia

Red Rimmed Melania females are both parthenogenic and ovoviviparous. Females can be recognized by their greenish coloured gonads while males have reddish gonads. Under good conditions, females will produce fertilised eggs that are transferred to a brood pouch where they remain until they hatch. Melanoides tuberculata has 1 – 64 embryos in its brood pouch. Snails will begin reproducing at a size as small as 5 mm or 10 mm in length and broods may contain over seventy offspring. The size of the shell of the parent at the peak release of juveniles is 20.0 mm. The size of juveniles at birth is 1.2 – 2.2 mm.

Red Rimmed Melanias are quite commonly found in freshwater aquaria, but opinion in the hobby is divided between those who see them as a pest species and those who value their usefulness as algae-eaters and substrate-cleaners. Among aquarists, these snails are known as Malayan livebearing snails or Malayan / Malaysian trumpet snails.