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Marcus Ev.; Marcus Er. (1967). American opisthobranch mollusks Part I, Tropical American opisthobranchs, Part II, Opisthobranchs from the Gulf of California. Studies in Tropical Oceanography. 6: 1–256, pl. 1.
Marcus Ev.; Marcus Er. (1967). American opisthobranch mollusks Part I, Tropical American opisthobranchs, Part II, Opisthobranchs from the Gulf of California. Studies in Tropical Oceanography. 6: 1–256, pl. 1.
