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]