Pterygopodium

• (n.) A specially modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper.
Found on http://thinkexist.com/dictionary/meaning/pterygopodium/

Pterygopodium

Pter`y·go·po'di·um noun ; plural Pterygopodia . [ New Latin , from Greek ..., ..., a fin + ..., dim. of ..., ..., a foot.] (Anat.) A specially modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper.
Found on http://www.encyclo.co.uk/webster/P/189
No exact match found