propatagium
In bats and pterosaurs, thin web of skin that extends from the shoulder to the wrist anterior to the upper arm and forearm, and is fixed on the neck or skull. [ http://palaeos.com/vertebrates/glossary/glossaryPo.html ]
Term info
propatagium
uberon
UBERON:0010861
In pterosaurs: the patagium present from the shoulder to the wrist, In bats: The patagium present from the neck to the first digit, In birds: The triangular fold of skin on leading edge of the wing