Dodecaceria berkeleyi n.sp., a Polychaete (Family Cirrutulidae) from New Zealand

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Abstract
The described species of the genus Dodecaceria are reviewed. Fourteen species are recognized and their diagnostic characters are given. A new species, Dodecaceria berkeleyi, is described from New Zealand where it is found boring in the shells of large gastropod molluscs. An outline is given of the nature of the skin pigments, which are similar to the arenicolochrome of lugworms. Asexual reproduction in the genus is reviewed, and an account is given of autotomy in D. berkeleyi, followed by regeneration to give rise to two individuals, a method of reproduction similar to that which occurs in the colonial tube builder Dodecaceria fistulicola. An advanced larval stage found in the burrows of D. berkeleyi is described.

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