Trochita pileus (Lamark, 1822)

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 : 64

Trochita pileus (Lamark, 1822) Fig. 5D

Material examined.

94 spm (2 × 1 - 22 × 10 mm).

Synonymy.

See Linse (2002).

Remarks.

This species has a very similar external morphology to Trochita pileolus ( d’Orbigny, 1984). Aldea and Rosenfeld (2011) explained that the most conspicuous external difference is that Trochita pileus has a smoother protoconch while Trochita pileolus has a wrinkled protoconch. Reid and Osorio (2000) denied the presence of the species Trochita trochiformis in Tierra del Fuego and the Strait of Magellan, previously reported by Carcelles and Williamson (1951), claiming that this record was probably referring to the species Trochita pileus .

Distribution.

WTSP: Santa María Island ( Aldea and Valdovinos 2005), Lebu ( Aldea and Valdovinos 2005), and Mocha Island ( Aldea and Valdovinos 2005). Magellanic: Strait of Magellan ( Aldea and Rosenfeld 2011): Laredo Bay ( Mutschke et al. 1998, Linse 2002), eastern micro-basin of the Strait of Magellan ( Osorio 1999, Linse 2002, Ríos et al. 2003), Cape Froward ( Osorio 1999), and Voces Bay ( Linse 2002); Punta Rico ( Linse 2002), Picton Island ( Linse 2002), Gardiner Island ( Linse 2002), Brecknock Channel ( Linse 2002), Beagle Channel ( Osorio 1999), Goree Passage ( Linse 2002), and Staten Island ( USNM 2010). WTSA: in Buenos Aires Province ( Strebel 1908).