Assertion: jellyfish's membrane | /r/Synonym | the velum
Facets:
Source sentences:
text: the lower surface is called the subumbrella; the mouth is located on the lower surface, which may be partially closed by a membrane extending inward from the margin (called the velum).
text: This membrane is referred to as a velarium
text: the lower surface is called the subumbrella; the mouth is located on the lower surface, which may be partially closed by a membrane extending inward from the margin (called the velum).