18496. Coan, E.   Geographic Uncertainties in the West American Donacidae.   San Diego Shell Club, 1982, The Festivus, 124 : 4 page with 1 table.   Off-print, stapled copied text, minor signs of use and age discoloration, text in very good condition.    $3.00

18502. DAttilio, A. and Myers, B. W.   Observations on Pteropurpura bequaerti (Clench & Perez Farfante, 1945).   San Diego Shell Club, 1983, The Festivus, 15 (3) : 31-38, 9 figures.   Off-print, stapled copied text, minor signs of use and age discoloration, text in very good condition.    $4.00

82278. Skoglund, C.   Additions to the Panamic Province Gastropod (Mollusca) Literature 1971 to 1992.   San Diego Shell Club, 1992, The Festivus, Volume 24, Supplement : 169 pages.   Softbound, very good condition.    $100.00

85774. Kaiser, K. L.   The Recent Molluscan Marine Fauna of the Islas Galapagos.   San Diego Shell Club, 1997, The Festivus, Volume 29, Supplement : 67 pages.   Softbound, spiral binding, very good condition.    $38.00

82277. Skoglund, C.   Panamic Province Molluscan Literature. Additions and Changes from 1971 through 2000. I Bivalve and II Polyplacophora.   San Diego Shell Club, 2001, The Festivus, Volume 32, Supplement : 139 pages.   Softbound, spiral binding, very good condition.    $100.00

82276. Skoglund, C.   Panamic Province Molluscan Literature. Additions and Changes from 1971 through 2001. III Gastropoda.   San Diego Shell Club, 2002, The Festivus, Volume 33, Supplement : 286 pages.   Softbound, spiral binding, very good condition.    $100.00