I Introduction.- II Named Species of the Subgenera I, II, IV, and V.- III Unnamed Species of the Subgenera II, III, IV, and V.- IV Re-Integrated Arizona Types Joined with Named Salmonella IV Species.- V Salmonella and Arizona Strains Excluded from the Kauffmann-White Scheme.- VI Zoological Designations and Trivial Names of the Animals Examined.- VII References.- Index of Names.- Epilogue.