Anatomy of Bullia laevissima from Cape Town, South Africa (Mollusca, Caenogastropoda, Nassariidae)

作者：Abbate Daniel^*; Simone Luiz Ricardo L

来源：Spixiana, 2016, 39(1): 1-10.

The morpho-anatomy of Bullia laevissima (Gmelin, 1791), a marine snail from South Africa, is investigated in detail. It has a dome-shaped shell, with sinuous ribs along the surface of the three initial whorls. Other external characters include the lack of eyes, and a flat foot with a pair of small epipodial tentacles. Radular characters are a comb-like rachidian tooth, and lateral teeth bearing three small inner cusps. The gland and valve of Leiblein are absent, the posterior esophagus is very broad if compared to other congeners. Other similarities and differences with other congeners are also discussed herein. These morpho-anatomical characteristics are discussed in the light of the current knowledge on other Bullia species, and differences show that diversity of the genus is undeniable, even in closely related species.

• 出版日期2016-9