kidneyshell
nounEtymology From kidney + shell.
1
Any of various freshwater mussels in the genus Ptychobranchus.
- Canada's species at highest risk — caribou, spotted owls and the freshwater kidneyshell mussel — remain under threat because the federal government is failing to use its own laws to protect them, says a coalition of environmental groups.2009 May 1, Moira Welsh, “Ottawa `ducking its own laws' on protecting wildlife, study says”, in Toronto Star: