Dictionary of ichthyology. 2009.

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  • dermotrichium — (plural dermotrichia)) the fin ray, of 4 types: ceratotrich (in cartilaginous fishes), actinotrich (in cartilaginous and bony fishes), lepidotrichs (only in bony fishes) and camptotrichs (in Dipnoi and Crossopterygi). Spiny rays in Actinopterygii …   Dictionary of ichthyology

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