Definition: An area of broken, fast flowing water in a stream, where the slope of the bed increases (but without a prominent break of slope which might result in a waterfall), or where a gently dipping bar of harder rock outcrops.
Known occurrences, collected specimens and observations of Taylorconcha Hershler, Frest, Johannes, Bowler & F. G. Thompson 1994. View this species on GBIF