Five internal organs of bottlenose dolphin (Tursiops truncatus) were plastinated and described, obtaining odorless, nontoxic and perdurable didactic models, which let their components to be modified in an unaltered context; the resulting specimens are opaque and firm, but not unbreakable, with an appearance similar to that of the living state. The anatomic descriptions were made in concordance with those of the authors presented within the antecedents of this study; reinforcing the knowledge that the internal organs of T. truncatus described here typify those of mammals in general aspects, since the great uniformity between their structural elements is revealed. Moreover, there are very few non pathological anatomic studies about dolphins; even though various mophometric and behavioral studies have been carried out, it still can be considered that several biological aspects of bottlenose dolphins remain to be described.

KEY WORDS: Plastination; Delphinidae; Bottle nose; Organs; Description.