Images attached to GBIF records (field photographs, museum & herbarium specimens), from . Open licences; click for the record.
assassin snail
Anentome helena Busch, 1847
Also calledRaub-Turmdeckelschnecke (deu) · Raubschnecke (deu) · Raubturmdeckelschnecke (deu)
Anentome helena, common name assassin snail or bumblebee snail, is a species of freshwater snail with an operculum, an aquatic gastropod in the family Nassariidae, most of which are marine.
From Wikipedia (CC BY-SA), quoted section by section
Description
The assassin snail typically grows to 0.7–1.25 in (18–32 mm) in size, though this is dependent on food sources; they are usually smaller when kept in an aquarium. The shell, which is conical in shape, often consists of dark brown and yellowish tan bands, leading to some people to refer to it as the bumble bee snail, a name also applied to the marine snail Engina mendicaria. Some specimens have been identified with completely brown shells, lacking banding.
Range & habitat
The assassin snail is found throughout southeast Asia, especially in Malaysia, Thailand, and in Lake Toba on the Indonesian island Sumatra.
What it does
Like all snails in the clade Neogastropoda, the assassin snail is carnivorous. It feeds on worms and gastropods, garnering it the common moniker of "assassin snail" for its habit of eating other snails. The snail will often feed on larger snails, often burying itself in order to ambush prey. Anentome helena may be a serious threat to native freshwater gastropods in countries when introduced.
Where it has been recorded
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Anentome helena in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 9510074.