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Description of a new bathyal species of Calliostoma (Mollusca: Trochoidea: Calliostomatidae) from the Arafura seaway
Willan, R.C. (2002). Description of a new bathyal species of Calliostoma (Mollusca: Trochoidea: Calliostomatidae) from the Arafura seaway. The Beagle 18: 9-14
In: The Beagle: Records of the Museums and Art Galleries of the Northern Territory. Museums and Art Galleries of the Northern Territory: Darwin. ISSN 0811-3653, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Trochoidea, Calliostomatidae, new species, Calliostoma bellatrix, taxonomy, biogeography

Author  Top 
  • Willan, R.C.

Abstract
    Calliostoma bellatrix n. sp. is described from depths of 250 to 400 metres depth in the seaway between northern Australia and the southern Indonesian archipelago, and extending into the eastern Indian Ocean. Its smooth shell, with flat sides to the whorls and an acutely angled periphery ornamented with a "double" nodulose keel, render it unique among Indo-Pacific calliostomes, and it may be the sister species to C. schroederi Clench and Aguayo from similar depths in the Caribbean Sea. Both C. bellatrix and C. schroederi clearly belong within the subgenus Ampullotrochus Monterosato.

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