diphycercal


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Related to diphycercal: Protocercal

diphycercal

[¦dī·fə′ser·kəl]
(vertebrate zoology)
Pertaining to a tail fin, having symmetrical upper and lower parts, and with the vertebral column extending to the tip without upturning.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.