Blacktail spurdog - Squalus melanurus Family SQUALIDAE - Dogfish sharks Squalus melanurus ADW: Squalidae: Classification
Species Squalus melanurus (blacktailed spurdog). Species Squalus mitsukurii
http://raven.utc.edu/cgi-bin/WA.EXE?A2=ind0201&L=shark-l&F=&S=&P=8507

Squalus melanurus ITIS Standard Report Page: Squalus
Species, Squalus megalops (Macleay, 1881) -- shortnose spurdog, Species, Squalus
http://www.itis.usda.gov/servlet/SingleRpt/RefRpt?search_type=publication&search_id=pub_id&search_id_value=712