Published in Occasional papers on mollusks, in 1967, in volume 3, issue 35, pages 1-35

Published in Occasional papers on mollusks, in 1967, in volume 3, issue 35, pages 36

Published in Occasional papers on mollusks, in 1967, in volume 3, issue 36, pages 37-43

Published in Occasional papers on mollusks, in 1967, in volume 3, issue 36, pages 44

Published in Occasional papers on mollusks, in 1967, in volume 3, issue 37, pages 45-52