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Free Content Ctenantedon, a New Antedonid Crinoid Convergent with Comasterids

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A new genus and species of comatulid crinoid, Ctenantedon kinziei, is described from CuraƧao and Santa Marta, Colombia. It is placed within the suborder Macrophreata, family Antedonidae, subfamily Antedoninae. In the well-developed comb teeth on the oral pinnules and the radial arrangement of the distal pinnules, C. kinziei resembles certain species of Nemaster (suborder Oligophreata, family Comasteridae) which cooccur with C. kinziei. Since the living habits of C. kinziei also resemble those of the sympatric species of Nemaster, the morphologic resemblance is considered to represent convergent adaptation to similar modes of life.

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Document Type: Research Article

Publication date: 1972-03-01

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