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Data last updated
Mon 1 Dec 2025
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Publication Hannibal (1912): summarypublication summary
Full CitationHannibal, H. 1912. A synopsis of the Recent and Tertiary freshwater Mollusca of the Californian Province, based upon an ontogenetic classification. Proceedings of the Malacological Society of London 10(2): 112-166. Available electronically.
Attributed Nominal Genera
Attributed Nominal Species
Anodonta cygnea Hannibal, 1912 = unionoid fossil
Hannibal, 1912. Proc. Malac. Soc. London 10(2): 126. (misidentified reference to Anodonta cygnea Draparnaud, 1806)
Hannibal, 1912. Proc. Malac. Soc. London 10(2): 129. (reference to Anodonta dejecta Lewis, 1875)
Taxonomic OpinionsAnodonta cygnea (Linné, 1758) + Mytilus anatinus Linnaeus, 1758 + Anodonta cellensis Pfeiffer, 1821 + Anodonta ponderosa C. Pfeiffer, 1825 + Anodonta oregonensis Lea, 1838 + Anodon cognata Gould, 1850 + Anodonta kennerlyi Lea, 1860 Anodonta cygnea (Linné, 1758) = Anodonta oregonensis Anodonta cygnea (Linné, 1758) = Anodonta anatina Anodonta cygnea (Linné, 1758) = Anodonta kennerlyi Anodonta cygnea beringiana Middendorff, 1851 = Beringiana beringiana + Anodonta youconensis Lea, 1867 + Anodonta youkanensis Lea, 1867 Anodonta cygnea impura Say, 1829 = Anodonta nuttalliana + Anodonta nuttalliana Lea, 1838 + Anodonta wahlamatensis Lea, 1838 + Unio (Anodonta) coarctata Anton, 1839 + Anodonta californiensis Lea, 1852 + Anodonta triangularis Trask, 1854 + Anodonta rotundovata Trask, 1854 + Anodonta exilior Lea, 1871 + Anodonta nuttalliana var. idahoensis Hemphill, 1891 + Anodonta chapalensis Crosse & Fischer, 1893 + Anodonta chalcoensis Crosse & Fischer, 1893 + Anodonta nuttalliana lignitica Cooper, 1894 + Anodonta kettlemanensis Arnold, 1909 Anodonta cygnea impura Say, 1829 = Brachyanodon impura Anodonta cygnea impura Say, 1829 = Anodonta californiensis Anodonta cygnea impura Say, 1829 = Anodonta kettlemanensis Arnoldina dejecta (Lewis, 1875) = Anodonta californiensis Gonidea angulata (Lea, 1838) + Anodon feminalis Gould, 1850 + Anodonta randalli Trask, 1854 + Anodon biangulata Sowerby, 1869 Gonidea angulata haroldiana Dall, 1908 = Gonidea angulata + Anodonta angulata var. subangulata Hemphill, 1891 Gonidea hemphilli n. sp. Gonidea (Limnobasilissa) angulata subangulata (Cooper, 1894) = Gonidea angulata + Gonidea coalingensis Arnold, 1909 + Gonidea coalingensis cooperi Arnold, 1909 Margaritana margaritifera (Linné, 1758) = Margaritifera margaritifera + Alasmodonta arcuata Barnes, 1823 Margaritana margaritifera falcata (Gould, 1850) = Margaritifera falcata + Alasmodon yubaensis Trask, 1854 Margaritana (Pseudunio) herrei n. sp. = Margaritifera herrei Migranaja condoni (White, 1885) = Margaritifera condoni Migranaja littoralis (Lamarck, 1801) = Potomida littoralis Unio transpacifica Arnold & Hannibal
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