Description:

Shell: brown/beige/yellow, about 28 mm, thick-shelled, brown lateral bands or unicolored. Variable coloration. About 6 whorls with lateral rigeds and operculum. Body: beige with grey speckles.

Aperture : teardrop-shaped.

Striking characteristics: foldable tube formed by the mantle material. Probably used to locate food animals and to perceive other "smells“ (chemoreceptors(?))

Range/ Habitat:

Indonesia - Java, South-East Asia, Thailand, Prov. Phitsanulok, Kaek River, Sakunothay at a waterfall.
Habitat: fast-flowing river, above the waterfall 

Thailand, Prov. Loei, Mekong bayou E of Chiang Khan
Habitat: muddy-sandy, riverside with stones and roots 

Thailand, Prov. Phitsanulok, water fall about 5 km S of Chattrakan
Habitat: clear, fast-flowing river, rock barriers 

Further habitats:

clear river, sandy-muddy substrate

brook with cataracts, limestone

nearly dried-out river bed, sand and gravel ground, dirty

slow-flowing, mud-covered rock

fast-flowing river, rapids over a series of rock barriers.

Water parameters:

Unfortunately, there are no water parameters available to the editors.

Reproduction: 

- dioecious

- clutches on hard substrate, 1 to 2 eggs of 1 mm lenght

Behavior:

It is rather active and mostly moves on the sand. In order to catch its prey it digs intself in the sand so that its mouth and the tube still protrude, but the shell is invisible. As soon as a snail comes close, it leaves its hide-away, sticks its tube into the snail's aperture and eats it. In general, only the innards are left over.

However, it also follows the slime trail of its prey and actively hunts them down.

In this photo the two "tubes" of Anentome helena can be seen very nicely. No. 1 serves as locating organ, No.2 is the tube with which the prey is sucked out, here it is clearly pink during the feeding process.

Food:

Live food – snails, as well as dry food 

Socialisation: 

with dwarf shrimp, gastropods and fish

Additional information: 

Does well in medium hard water, also ok in softer water.

Web links:

Crusta.de

Sys tax

[ Systematics ]

This page was actualized on December 29, 2007

Author: Alexandra Behrendt

Translator: Ulrike Bauer

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