Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 107-116

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 117-122

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 123-137

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 139-144

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 145-155

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 157-164

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 165-171

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 173-186

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 187-191

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 193-197

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 199-206

Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 207-215