William E. Moser, D. Richardson, C. Hammond, E. Lazo-Wasem
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引用次数: 3
Abstract
Abstract Placodella michiganensis (Sawyer, 1972) was originally described from free-living individuals collected from Mill Creek, St. Joseph County, Michigan, USA. The acquisition of contemporary specimens from its type locality has facilitated redescription of P. michiganensis. Placobdella michiganensis does not have a confusing taxonomic history like many other members of the genus Placobdella as it has only been collected two other times since its description. Placodella michiganensis is distinguished from its congeners by its five rows of whitish single-tipped papillae, genital and pre-anal patches, five pre-anal papillae, and absence of a dark dorsal-medial line. Placobdella michiganensis is a morphologically distinct species with a 16.0% to 22.0% difference in cytochrome c oxidase subunit I sequence data among congeners.
期刊介绍：
The Bulletin of the Peabody Museum of Natural History publishes original research based on specimens, artifacts and related materials maintained in the collections of the Yale Peabody Museum of Natural History’s curatorial divisions. The Bulletin is published twice a year, in April and October.
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