Can any pecten lover reliably separate Decatopecten plica (L. 1758),
subplicatus (Sow.II 1842), velutinas (Sow.II 1842), striatus (Schemacher
1817).
My mentor, Henk Dijkstra says that though there is on ongoing study on
them, he feels they are al plica. Agreement? Disagreement?
E. Haviland