Dall, W. H., and Ochsner, W. H., 1928. Tertiary and Pliestocene Mollusca from the Galapagos Islands. Proceedings of the California Academy of Sciences, ser. 4. vol. 17 (4 ): 89 -139 .
(3.62 MB)
New Species-Group Names:
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academicus Dall & Ochsner, 1928. p. 102. pl. ii. f. 5.
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indefatigabilis Dall & Ochsner, 1928. p 102 pl. ii. f. 4.
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loomisi Dall & Ochsner, 1928. p. 103 pl. ii f.