Plethobasus cyphyus (Sheepnose) is a species of mussels in the family unionid freshwater mussels. They are listed as endangered by IUCN. They are associated with freshwater habitat. They are native to The Nearctic. They are herbivores. Individuals can grow to 63.2 mm. They have sexual reproduction. They have parental care (female provides care).
EOL has data for 27 attributes, including: