http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
tribe Alasmidontini (Unionidae, Anodontinae)
pt. 1. Pegias, Alasmidonta, and Arcidens. -- pt. 2. Lasmigona and Simpsonaias.
Smithsonian contributions to zoology ; no. 326