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Species Voluta alta Sowerby 1846

Discussion / Comments:
Griffin & Nielsen (2008):
TYPE MATERIAL. Sowerby (1846, p. 262) stated that he had a single specimen from Navidad, which would be the holotype, and “two casts apparently belonging to this species, but considered by M. d’Orbigny as different” from Santa Cruz, which would not have type status. In the NHM only one specimen remains (NHM-G25287) labelled as Santa Cruz, agreeing only very vaguely with the figure. A neotype was designated by Nielsen & Frassinetti (2007) within a review of the Chilean Neogene volutes. REMARKS. Sowerby (1846, p. 262) stated that “there is only one specimen of this remarkable shell, of which the anterior part is so imperfect, that no part of the inner lip or of the canal is to be seen”. From this statement it can be concluded that this specimen would be the holotype from Navidad. It is evident that Sowerby had doubts about the “two casts apparently belonging to this species, but considered by M. d’Orbigny as different” from Santa Cruz. Following ICZN Article 72.4.1 the latter specimens are therefore not part of the type series. The remaining specimen from Santa Cruz (see del Río & Martínez, 2006, figures 14.5 and 14.6) has been used for the aperture in the composite figure given by Sowerby (1846, pl. 4, fig. 75) but the figured spire is that of the lost holotype.
Synonym list:
Griffin & Nielsen (2008):
1846 Voluta alta Sowerby. - Sowerby : p.262 pl. 4; fig. 75
1887 Voluta alta Sowerby. - Philippi : p.65 pl. 7; fig. 6 (from Sowerby)
2007 Adelomelon alta Sowerby. - Nielsen & Frassinetti : p.93 fig. 9.1, 9.2
2008 Adelomelon alta Sowerby. - Griffin & Nielsen : pl. 18; fig. 1-2
Was used in synonym list of:
Adelomelon curiniancui

Sowerby,G.B.. (1846):
Descriptions of Tertiary fossil shells from South America..
In: Geological observations on South America. Eds: Darwin, C.. p. 249-264

Philippi,R.A.. (1887):
Die tertiären und quartären Versteinerungen Chiles.. p. 266

Nielsen,S.N.. and Frassinetti,D.. (2007):
The Neogene Volutidae (Gastropoda, Neogastropoda) from the Pacific coast of Chile . Journal of Paleontology Vol. 81 p. 82-102

Griffin,M.. and Nielsen,S.N.. (2008):
A revision of the type specimens of Tertiary molluscs from Chile and Argentina described by d’Orbigny (1842), Sowerby (1846), and Hupé (1854) . Journal of Systematic Palaeontology

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