^The American Association for the Advancement
of Science is an international non-profit organization dedicated to advancing science for the benefit of all people.
^(A Revision of the Catsharks, Family Scyliorhinidae, Stewart Springer, NOAA Technical Report NMFS Circular 422, وزارة التجارة, April 1979, 152 pages.)
^personal correspondence from Stewart Springer to Donald Hawley, January 31, 1991
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