- A horny external covering that encloses the polyp colonies of specific hydrozoans.
- The outer hardened integument that addresses many hydroids.
- The outer, hardened integument which covers most hydroids.
- The hard, horny, or chitinous ectodermal situation or addressing with that your soft parts of hydrozoans are often protected.
Sentence for "perisarc"
- A transparent sheath known as the…
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