2504 Acipenser naccarii Bonaparte, 1836 Acipenseridae Sturgeons Acipenseriformes Chondrostei Adriatic sturgeon Europe: Adriatic Sea and its tributaries between Po (Italy) and Buna (Albania) drainages. Recorded from Corfu; present in lowermost part of Adriatic rivers from Soca to Drin. Records from Tyrrhenian slope of Italy, Spain and France are erroneous.