| Citation | Beamish, R.J. and G.A. MacFarlane, 1985, Annulus development on the second dorsal spine of the spiny dogfish (Squalus acanthias) and its validity for age determination.. Can. J. Fish. Aquat. Sci. 42:1799-1805. |
| Ref. | 47055 Beamish, R.J. and G.A. MacFarlane, 1985 |
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| Named Used as Valid | Squalus acanthias |
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