About Aplysia brasiliana Rang, 1828
Aplysia brasiliana can be immediately distinguished from other Aplysia species by two distinctive characteristics. First, the anterior portion of the animal is quite elongated, while its posterior portion is noticeably shorter in comparison. Second, the operculum is positioned further back, which causes it to slope towards the tail. Beyond these two key features, additional identifying traits are also documented. The mantle is dark brown in color. The posterior tentacles are perfectly conical, which stands in sharp contrast to the other tentacles, which are very broad. The animal's lobes are large and elongated, and the operculum itself is quite large. The shell also has a distinct appearance: it is oblong in shape and dark yellow in color. A thick calcareous layer covers its ventral surface. The apex is poorly developed, and there is almost no indentation present. This species is distributed in the Caribbean Sea, and in the Atlantic Ocean off the coast of Brazil.
