Half-Propellor Ark
Trisidos semitorta
- Group: Other
- Typical depth: 0–30 m
- Max size: 8 cm
- For divers: safe
This ark shell has a strangely twisted form, lying half buried in current swept sand and gravel with its propeller like rear end resting flat on the surface. The exposed shell often ends up eroded and colonised by other animals, while juveniles attach inside empty shells of their own kind.
Taxonomy: Animalia › Mollusca › Bivalvia › Arcida › Arcidae › Trisidos
Species data via the World Register of Marine Species (WoRMS), AphiaID 504474.
FAQ
- How deep does the Half-Propellor Ark live?
- The Half-Propellor Ark (Trisidos semitorta) is typically found at 0–30 m.
- Is the Half-Propellor Ark dangerous to divers?
- The Half-Propellor Ark is harmless to divers.
- How big does the Half-Propellor Ark get?
- The Half-Propellor Ark grows to about 8 cm.