Xymenopsis muriciformis (King & Broderip, 1832)

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 : 69

Xymenopsis muriciformis (King & Broderip, 1832) Fig. 6G

Material examined.

51 spm (5 × 3 - 32 × 17 mm).

Synonymy.

See Pastorino and Harasewych (2000).

Remarks.

This species has a similar morphology to Xymenopsis subnodosus (Gray, 1839) in that it presents an external crenulate margin of the aperture, 12-16 axial cords on the last whorl, and 22-24 spiral cords ( Pastorino and Harasewych 2000). Xymenopsis muriciformis has a direct development during its reproductive cycle, depositing its egg masses on rocky substrates ( Zelaya 2009a).

Distribution.

Magellanic: Chonos Archipelago ( Húpe 1854, Rochebrune and Mabille 1889), Puerto Edén ( Dell 1971), Traiguén Island ( Reid and Osorio 2000), Guarello Island ( Pastorino and Harasewych 2000), Paso de Indio ( Dell 1971), Madre de Dios Island ( Pastorino and Harasewych 2000), and Smyth Channel ( Strebel 1904); Strait of Magellan ( King and Broderip 1832, Húpe 1854, Tryon 1880, Rochebrune and Mabille 1889, Strebel 1904, Powell 1951, Pastorino and Harasewych 2000): Punta Arenas ( Strebel 1904, Pastorino and Harasewych 2000), Punta Santa María (this record), Gente Grande Bay ( Strebel 1904), Inútil Bay ( Strebel 1904, USNM 2010), Puerto del Hambre ( Pastorino and Harasewych 2000), Punta Santa Ana ( Ríos et al. 2007; this record), Cape Froward ( USNM 2010), Dawson Island ( Pastorino and Harasewych 2000, USNM 2010), and Carlos III Island ( Pastorino and Harasewych 2000, Aldea et al. 2011a); Cockburn Channel ( Pastorino and Harasewych 2000), Ushuaia ( Strebel 1904, Pastorino and Harasewych 2000), Puerto Harberton ( Strebel 1904, Pastorino and Harasewych 2000), Beagle Channel ( Pastorino and Harasewych 2000), Navarino Island ( Strebel 1904), Puerto Williams ( Dell 1971), Orange Bay ( Tryon 1880, Rochebrune and Mabille 1889, Lamy 1906b), and Cape Horn ( Strebel 1904); from 41°S toward south in the South Atlantic Ocean ( Morris and Rosenberg 2005), Puerto Deseado ( Pastorino and Harasewych 2000), Tierra del Fuego ( Pastorino and Harasewych 2000), San Sebastián Bay ( Pastorino and Harasewych 2000, USNM 2010), Malvinas/Falkland Islands ( Watson 1886, Powell 1951, Castellanos and Landoni 1993, Pastorino and Harasewych 2000, USNM 2010), Cape Buen Tiempo ( Pastorino and Harasewych 2000), Port Stanley ( Strebel 1904), Lively Island ( Pastorino and Harasewych 2000), Staten Island ( Pastorino and Harasewych 2000), Puerto Año Nuevo ( Pastorino and Harasewych 2000), and Cape San Diego ( USNM 2010).