Published in Occasional Papers on Mollusks, in 1974, in volume 4, issue 48, pages 1-27

Published in Occasional Papers on Mollusks, in 1974, in volume 4, issue 49, pages 29-38

Published in Occasional papers on mollusks, in 1974, in volume 4, issue 50, pages 39-49

Published in Occasional papers on mollusks, in 1974, in volume 4, issue 50, pages 50-52