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MARA: • JUNA: SEP~ DECA: <br />MARB: JUNB: SEPB: DECB: <br />"P" = Adults or larvae present but mostly inactive (eg in diapause). <br />"A" = Adults present and active (eg. not in diapause), but not <br />reproducing. <br />"R" = Adults present, active and reproducing. <br />"L" = Larvae present and active (eg. feeding and not in diapause). <br />"E" = Eggs present outside of the parent. <br />"U" = Pupae or prepupae present. <br />PHENOLOGY COMMENTS: _ <br />Selected Life History Traits: <br />ECOLOGY COMMENTS: <br />Mud bottom, sand, or gravel. Water few inches deep to a <br />meter with varying degrees of flow. Vegetation may be sparse <br />to moderately abundant (Clarke 1973). <br />Known Threats and Manaciement Issues:: <br />References• <br />ABBREVIATED CITATION: FULL CITATION: <br />Clarke 1973 Clarke, A. H. 1973. The Freshwater Molluscs of <br />the Canadian Interior Basin. Malacologia, <br />13:1-509. <br />Clarke 1981 Clarke, Arthur H. 1981. The Freshwater Mollusks <br />of Canada. National Museum of Natural Sciences, <br />Ottawa, Ontario, Canada. 446 p. <br />Wu 1978 Wu, Shi-Kuei. 1978. Natural history inventory <br />of Colorado. The Bivalvia of Colorado. The <br />fingernail and pile clams (part 1) and the <br />freshwater mussels (part 2). University of <br />Colorado Museum. Boulder, CO. 60 p. <br />DATA PROVIDED BY THE COLORADO NATURAL HERITAGE PROGRAM; <br />CURRENT TO JAN 2000 <br />