A new species and range extensions for three other species of pebblesnails (Lithoglyphidae, Fluminicola) from the upper Klamath basin, California–Oregon

Collection: Pensoft Publishers

Keywords: Caenogastropoda · Topics: Freshwater macroinvertebrate diversity and ecology, Aquatic Invertebrate Ecology and Behavior, Fish Ecology and Management Studies

This is the fifth in a recent series of papers on the poorly known western North American pebblesnail genus Fluminicola (Caenogastropoda, Lithoglyphidae). Herein we clarify the taxonomic status of the currently undescribed pebblesnail fauna in the upper Klamath River drainage (UKL) based on morphologic evidence, and mitochondrial DNA sequence data from 58 UKL collection localities. We describe one new species (F. klamathensis) from eight UKL localities which is differentiated by mtDNA sequences and unique penial morphology, and document range extensions to the UKL for three species from closely proximal drainages (F. fresti, F. modoci, F. multifarius). Fluminicola fresti was found at a single locality along the western edge of upper Klamath Lake. Fluminicola modoci and F. multifarius are widely distributed in the UKL; both species exhibit marked morphologic variation yet are relatively little differentiated genetically in this basin.

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