clasper spur
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myxopterygium — (plural myxopterygia)) the copulatory organ or clasper of Elasmobranchii and Holocephali; rod like extensions of the inner side of the pelvic fins. It is composed of the long stem cartilage, a shorter distal cartilage, the dorsal terminal… … Dictionary of ichthyology
Dunston, Tyne and Wear — Coordinates: 54°57′07″N 1°38′20″W / 54.952°N 1.639°W / 54.952; 1.639 … Wikipedia
