Acteon biplicatus (Strebel, 1908)

Rosenfeld, Sebastian, Aldea, Cristian, Mansilla, Andres, Marambio, Johanna & Ojeda, Jaime, 2015, Richness, systematics, and distribution of molluscs associated with the macroalga Gigartina skottsbergii in the Strait of Magellan, Chile: A biogeographic affinity study, ZooKeys 519, pp. 49-100 : 70-71

Acteon biplicatus (Strebel, 1908) Fig. 6H

Material examined.

2 spm (4 × 1.5 - 5 × 3 mm).

Synonymy.

Odostomia biplicata Strebel 1908: 65, pl. I, fig. 9a.

Acteon biplicata , Castellanos and Landoni 1986: 297, pl. I, fig. 9.

Acteon biplicatus , Castellanos et al. 1993: 7, pl. I, fig. 3; Forcelli 2000: 115, fig. 347; Cárdenas et al. 2008: 223, fig. 5.56; Aldea et al. 2011b: 43, fig. 3B.

Remarks.

The morphology of this species is similar to Acteon elongatus Castellanos, Rolán & Bartolotta, 1987. However, it can be differentiated because Acteon elongatus does not have a columellar tooth and has a wider aperture ( Aldea et al. 2011b).

Distribution.

Magellanic: Coldita Channel ( Cárdenas et al. 2008), Messier Channel, and Wide Channel ( Aldea et al. 2011b); Strait of Magellan: eastern micro-basin of the Strait of Magellan ( Ríos et al. 2003) and Punta Santa María (this record). South Atlantic Ocean: from 43°S ( Morris and Rosenberg 2005), Malvinas/Falkland Islands ( Castellanos et al. 1993), and Berkeley Sound ( Strebel 1908).