PILLERI,G. — INVESTIGATIONS ON CETACEA vol. 18

Berne 1986,272 pp.,b&w photos/textill./tables, contents Pilleri,G. a.o. Evolution of the echolocation system in Cetaceans: a contribution to Paleoacoustics + Pigmy Sperm Whale (Kogia) in the Italian Pliocene + The taxonomic status of 'Schizodelphis elongatus'= Miokogia elongatus (Probst, 1886) (Cetacea, Physeteridae) + Record of Schizodelphis sulcatus (Cetacea, Acrodelphidae) from the Miocene of Preplans, Friuli, Western Carnian Prealps / Cave,A.E.J. The Atlanto-axial complex in the lesser Rorqual (Balaenoptera acutorostrata) / Nieto,A a.o. The islets of Calleja in the dolphin / Northridges,S. a.o. A review of human impact on small Cetaceans (code A-69/A-79)