Diphycercal

• (a.) Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal.
Found on http://thinkexist.com/dictionary/meaning/diphycercal/

Diphycercal

Diph`y·cer'cal adjective [ Greek difyh`s double ( di- = di`s- twice + fy`ein to produce) + ke`rkos tail.] (Anat.) Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protoc...
Found on http://www.encyclo.co.uk/webster/D/70
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