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The tribe Alasmidontini (Unionidae, Anodontinae), Part II: Lasmigona and Simpsonaias

1985; Smithsonian Institution Scholarly Press; Linguagem: Inglês

10.5479/si.00810282.399

1943-6696

Arthur Haddleton Clarke,

Shoulder and Clavicle Injuries

—The taxonomy, morphology, life history, and distribution of eight species and subspecies, comprising two genera, are described. As in Part 1, discussions of morphology include descriptions of the shell, anatomy, and glochidium (where possible) of each species and subspecies, and of character variation, together with statistical tables, illustrations, and scanning electron micrographs. Distributional data include organized lists of all specimens in the major museum collections, with distribution maps, and with special reference to recently collected material that is likely to represent living populations. Species and subspecies recognized are: Lasmigona (Alasminota) holstonia (Lea), L. (Lasmigona) costata (Rafinesque), L. (L.) complanata complanata (Barnes), L. (L.) complanata alabamensis, new subspecies, L. (Platynaias) compressa (Lea), L. (P.) subviridis (Conrad), L. (P.) decorata (Lea), and Simpsonaias ambigua (Say). Addenda provide additional information about some of the species included in Part 1 of this monograph, including a description and SEM micrographs of the glochidia of Alasmidonta (Decurambis) varicosa (Lamarck).