Trivia solandri

 

The white part is shell, the rest is animal
© 2002 Paul Foretic

 

© 2002 Paul Foretic

 

Trivia solandri shells
Note the bumps and that the transverse lines do not cross the midline
© Peter Brueggeman

 

Compare to these Trivia californiana shells,
where the transverse lines do cross the midline
© 2002 John H. Moore