Smith, A. (1837)
Dr. Andrew Smith on the necessity for a revision of the groups included in the Linnean genus Squalus.
Proceedings of the Zoological Society of London, Part 5, 85–86
Smith, A. (1838)
On the necessity for a revision of the groups included in the Linnean genus Squalus.
Proceedings of the Zoological Society of London, 5, 85–86