ossa quadrato-jugalia
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os quadrato-jugale — (plural ossa quadrato jugalia)) quadratojugal (a paired dermal bone behind the quadrate, e.g. in Lepisosteus and Acipenseridae. It may be an independent ossification, e.g. in Salmo and Syngnathus. Sometimes called interopercle or preopercle from… … Dictionary of ichthyology
