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( . North Carolina Mussel Atlas i http://www.ncwildlife.orgf pg07_WildlifeSpeciesCon/pg7blal 20.h4m ~~~~~~~ ~~~t~ic~~ a;~~ ~~r~~ w'«Q~~ ~~~~ 1~ ~~s~-v~~~ • .~ •~~~~~~ ~~ ~~~~ , ~ creeper Strophitus•~crndulatus {Say, 1817) T .~. I (interior) Please Note: Red text is. defined in fhe Glossanr Description Shells of the creeper tend to~Eie rather ftiin and ~~~ fragile. Specimens may reach over 100 mm in length in North~Carolina. The periostracum is . generaAy srnooth~and shiny. The color may range from yellowish to dark brown. Green rays may extend over the entire surface of the sheq. The anterior end is rounded and the posterior end is rounded except a straight margin niay exist near the terminus of the posterior ridge: The dorsal margin is straight with fhe umbos extending above this margin. Ttie ventral margin is irregularly rounded. Growth rests are clearly evident when the shetE is held toward a bright light. The pasfierior slope tends to be roughened even on sheik tending to be smooth. Lateral teeth are absent and the pseudocardjnal teeth are vestigial in each valve: The nacre #ends to be iridescent and ranges in color from gray to blue. The nacre may be extensively colored salmon. Distribution see trio The range of the creeper includes both the Atlantic Slope and the Interior Basin. It is found through the Mississippi and Ohio drainages from Central Texas to Lake Winnipeg, Canada. In the Atlantic Slope it occurs from the Savannah River in South Carolina to the St. Lawrence River in Canada (Johnson 1970). Distribution by County: French Broad River Basin: Transylvania Co. (Little River Subbasin, French Broad River), Henderson Co. (Gone Craek Subbasin, French Broad River}, BuncombeCo. (t=rench Broad River}.• Broad. River Basin: Polk Co. (Green River). •Pee Dee River Basin: Union~Co. (Goose Gr. Subbasin), Stanly Co. (Bear Cr. Subbasin), Montgorriery Co. (Barnes and Densons creek subbasins, Little River Subbasin), Raridoiph Ca. (Caraway Cr. Subbasin). Cape Fear River:Basin: Moore Ca: (peep River Subbasin), Chatham Co. (Rocky River Subbasin, Buckhorn Cr. Subbasin}, Alamance Co. (Stinking Quarter Cr. Subbasin), Orange Co. (Cane Gr.• Subbasin). Neuse River Basin: Orange Co. (Eno and Little river~subbasins), Person Go. (Flat River.Subbasin), Durham Co. (FEafi and Little river subbasins), Wake Co. {Crabtree, Swift, and Middle creek subbasins}, Johnston Co. (Midd{e and Swift creek subbasins, Little River Subbasin)', Nash Co. {Moccasin and Turkey creek subbasins), Wilson Co. (Moccasin, Turkey, and Contentnea'creek subbasins), Jones Ca. {Trent River Subbasin). Tar River• Basin: Person Co. (Tar River Subbasin), Granville Co. (Shelton and Cub creek subbasins, and Tar River Subbasin), Vance Ca..(Ruin and Tabbs creek subbasins), Franklin Co. (Sandy, Fox, and Croaked creek subbasins), Nash Co. (Stony and Swift creek subbasins, Tar River Subbasin), Warren Co. {exterior}