MolluscaBase source details
Lea, I. (1869). Index to Vol. XII. and Supplementary Index to Vols. I to XI. of Observations on the Genus Unio, together with Description of New Species of the Family Unionidæ, and Description of New Species of the Melanidæ, Paludinæ, Helicidæ, etc. Read before the American Philosophical Society and the Academy of Natural Sciences of Philadelphia, from 1827 to 1868. Volume II. 23 pp. [with errata to vols. I–XI]. Printed for the author, Philadelphia.
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Lea, I.
1869
Index to Vol. XII. and Supplementary Index to Vols. I to XI. of Observations on the Genus Unio, together with Description of New Species of the Family Unionidæ, and Description of New Species of the Melanidæ, Paludinæ, Helicidæ, etc. Read before the American Philosophical Society and the Academy of Natural Sciences of Philadelphia, from 1827 to 1868. Volume II.
23 pp. [with errata to vols. I–XI]. Printed for the author, Philadelphia
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Trypanostoma moriforme I. Lea, 1862 accepted as Pleurocera showalterii (I. Lea, 1862) (basis of record)
