original descriptionVerrill, Addison Emery. (1874). Explorations of Casco Bay by the U.S. Fish Commission in 1873. <em>Proceedings of the American Association for the Advancement of Science.</em> 22: 340-395, 6 plates., available online athttp://archive.org/stream/proceedingsamer11sciegoog#page/n594/mode/2up[details]
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