Molluscs › Calliostomatidae

Portuguese Top Shell

Calliostoma lusitanicum

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Wildlife study photograph from iNaturalist. — (c) rinoiubatti, some rights reserved (CC BY-NC)

All photos1

1 photo

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Photos you add are credited to you, and you keep the copyright.

Easily confused with

Common Eagle RayMyliobatis aquila

Study checks a spoken answer against these, and tells you which one you named.

Traits

Physical

Shell-bearingProtected by a hard shellFrom its classification

Classification

Kingdom	Animals · Animalia
Phylum	Molluscs · Mollusca
Class	Gastropods · Gastropoda
Order	Trochida
Family	Calliostomatidae
Genus	Calliostoma

Sources

Names, taxonomy and observation counts: www.inaturalist.org
Photos and recordings: the creator and source are on each one.
How much to rely on each source

Remember the name next time.

Practise Portuguese Top Shell with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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