- having a tail or caudal fin with the spinal column extending horizontally to the end of the tail, characteristic of lungfish, several other primitive fishes, and the juvenile stage of modern bony fishes.
Origin of diphycercal
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Examples from the Web for diphycercal
The tail may be heterocercal, as in Acipenser, or diphycercal as in Polypterus.
The tail is diphycercal, and the pectoral fins are typical archipterygia.
Diphycercal, dif-i-ser′kal, adj. having the tail symmetrical (of fishes).
In most primitive types, as in most embryonic fishes, the vertebræ grow smaller to the last (diphycercal).
The tail is diphycercal, heterocercal, or else it degenerates into a whip-like organ, a form which has been called leptocercal.
- ichthyol of or possessing a symmetrical or pointed tail with the vertebral column extending to the tip, as in primitive fishes
C19: from Greek diphuēs twofold (from di 1 + phuē growth) + kerkos tail
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