Bergh, L. S. R. (1879). On the nudibranchiate gasteropod Mollusca of the North Pacific Ocean, with special reference to those of Alaska. Part I. Proceedings of the Academy of Natural Sciences of Philadelphia. 31: 71–132, pl. 1-4.
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Bergh, L. S. R.
1879
On the nudibranchiate gasteropod Mollusca of the North Pacific Ocean, with special reference to those of Alaska. Part I.
Proceedings of the Academy of Natural Sciences of Philadelphia
