(…) Phocoena spinipinnis has only twice been recorded off the Atlantic coast of South America. Once by BURMEISTER , who published the original description of the species, and once by us in a previous paper [PILLERI and GIHR, 1972]. In 1972 we were able to collect the skull of a larger animal (T 532, our colI.) from Los Cerros (Prov.Rocha, Uruguay), the place from which our first specimen came. The kind assistance of Messrs. DARDO DE ACOSTA and OSWALD ROMANG who helped us to obtain this valuable specimen is gratefully acknowledged.
Since the literature on this species is very scant, we thought it would be of interest to publish the present note containing photographs of the specimen and biometric data. (…)