David Campbell wrote,
> The only unionoid that I know of reported for southern California is
Arnoldia dejecta, which is possibly extinct. It lacks hinge teeth.
"Dejecta" means "cast down, lowered, disspirited" in Latin. What's the story
behind this intriguing name?
Andrew K. Rindsberg
Geological Survey of Alabama
P.S. Thanks for singing the flying pig carol, Art and Avril!