From The Collaborative International Dictionary of English v.0.48 :
Alopius \Alopius\ n. 1. 1 type genus of the family Alopiidae; in some classifications considered a genus of the family Lamnidae. Syn: genus Alopius [WordNet 1.5]From WordNet (r) 3.0 (2006) :
Alopius n 1: type genus of the family Alopiidae; in some classifications considered a genus of the family Lamnidae [syn: Alopius, genus Alopius]