Английская Википедия:Ammotrophus cyclius
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Ammotrophus cyclius is a species of sand dollar of the family Clypeasteridae. Their external skeleton, known as a test, is covered with spines. It belongs to the genus Ammotrophus and lives in the seas off southern Australia. Ammotrophus cyclius was first scientifically described in 1928 by Hubert Clark.[1]
References
- ↑ Kroh, A. (2010). Ammotrophus cyclius (Hubert Lyman Clark, 1928). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species.