Photo by Bob Gress
used by permission

Lasmigona costata

Federal Status:

State Status:

  • Range: Range map for the Flutedshell
    Dark Blue = Counties with designated critical habitat
    Light Blue = Historical records
    A detailed range map may be found in the Mussel Bed
  • Comments: The flutedshell can be best identified by the wavy flutings on its posterior end. These look like rounded hills and valleys that resemble corrugations. If a shell is found, the lateral teeth are absent or so reduced they do not interlock. In Kansas, the flutedshell can be found in the Spring and Neosho rivers. A riverbed of mostly gravel with moderate current is ideal habitat for this mussel. The larval forms, called glochidia, of the flutedshell attach to the fins of their fish hosts using a pair of tiny hooks. They remain attached until they metamorphose and drop off as miniature mussels. Meanwhile, the fish host may transport them to new habitat. The fish hosts that occur in Kansas are largemouth bass, banded darter, northern hogsucker and common carp.

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Other Gastropods on the Kansas T&E List

Kansas Wildlife Refuge
Text: Ed Miller and Bob Gress
Range Maps and Web Design: Jim Mason

Questions or comments?  Send Email to Jim Mason Spidey
Or write us at: 
Great Plains Nature Center
6232 E. 29th Street North
Wichita, KS 67220-2200             Call:  316-683-5499            Fax:  316-688-9555