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Published: 2021-10-15

Two new species of Bimastos (Oligochaeta, Lumbricidae) from the Southern Appalachian Mountains, North America

Department of Integrative Biology, University of Wisconsin–Madison, Madison, WI, USA.
Department of Biological and Environmental Sciences, Georgia College and State University, Milledgeville, GA, USA.
Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
Department of Biological and Environmental Sciences, Georgia College and State University, Milledgeville, GA, USA.
Southern Research Station, US Forest Service, Athens, GA, USA
Annelida Earthworm North American native species Fire regime Male pores Bimastos


Two new species of Bimastos Moore are described based on morphological and molecular data. Bimastos nanae n. sp. resembles B. lawrenceae Fender, B. zeteki (Smith and Gittins) and B. welchi (Smith). Bimastos nanae n. sp. differs from these species in the position of the clitellum, size and number and position of thickened septa. Bimastos magnum n. sp. is similar to B. schwerti Csuzdi & Chang and B. palustris Moore in having a fully annular clitellum and male pores on huge porophores. Bimastos magnum n. sp. differs from both species by having a more posterior position of the clitellum (in xxiv-xxxiii, xxxiv) and larger body size. With the description of these new species, the number of Bimastos species is raised to 14.



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