- notopterygia
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plural of notopterygium
Dictionary of ichthyology. 2009.
notopterygia
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notopterygium — (plural notopterygia)) dorsal fin(s) (the unpaired fin(s) on the midline of the back. In Pleuronectiformes it is on the opposite side to the anus. In Centriscidae the hind end of the fish has been rotated under the fish so the dorsal fin is on… … Dictionary of ichthyology
