The 172 species of bivalve mollusks from the Gemmell collection of the Bahia San Felipe area (including Puertecitos and San Luis Gonzaga) in the northern Gulf of California are studied.Twenty-three of these species have not previously been reported from the San Felipe area.MAP I~SAN FELIPE AREA (Bernard, 1983

and perhaps some other collections." From this beginning, a search was made to confirm the repositories of much of the type material and to locate additional Berry type material for species named in the "LEAFLETS." Dr. Berry frequently specified the intended recipients (museums) of the type material of the species he described. Using this information, inquiries were sent to those museums.Each institution was asked to check its collections for the type material in question.They were asked for the quantity of material for each species and their museum catalog numbers. The author personally checked the type collections of the San Diego Natural History Museum, Los Angeles County Museum of Natural History, Santa Barbara Museum of Natural History, and the California Academy of Sciences.

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This work is a revision of the supplement to Volume 15 (January 1984) of The Festivus. Since the death of S. Stillman Berry in 1984, his remaining Redlands collection, housing many types, was placed in several institutions. This revision strives to provide a complete listing of the repositories of his type material introduced in his Leaflets in Malacology, update the synonymies and, with the improvement in desk-top publishing, reprint with better quality the original Poorman photographs of that type material. The Berry Collection numbers are no longer included in this revision. Of the fourteen holotypes unaccounted for in the previous supplement only Elaeocyma ricaudae has not been found. The holotype of Lepidozona inefficax is still considered lost.