''Aspidodiadema annulatum'' is a species of

sea urchin Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of ...

of the family

Aspidodiadematidae The Aspidodiadematidae are a family of sea urchins. Characteristics All the members of the two extant genera, ''Aspidodiadema'' and ''Plesiodiadema'', are found in tropical seas at bathyal and abyssal depths, often on the submarine slopes of i ...

. Their armour is covered with spines. It is placed in the genus

Aspidodiadema ''Aspidodiadema'' is a genus of echinoderms belonging to the family Aspidodiadematidae. The species of this genus are found in the Indo-Pacific and Caribbean. Description The test is small and subglobular with fragile plating which is firmly te ...

and lives in the sea. Aspidodiadema annulatum was first scientifically described in 1927 by Koehler.Kroh, A. (2010). ''Aspidodiadema annulatum'' (Koehler, 1927). In: Kroh, A. & Mooi, R. (2010
World Echinoidea Database
at the

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...

References

annulatum Animals described in 1927 {{echinoidea-stub