Plekocheilus (Eurytus) piperitus (Sowerby I, 1837)

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 48

Plekocheilus (Eurytus) piperitus (Sowerby I, 1837)

( Figs 17 G–J)

Bulimus piperitus Sowerby I 1837 (1832–1841): fig. 93. Type locality: [ Peru, Dept. San Martín] Huallaga. Type material: not located. Richardson 1995: 318 (references).

Material. Ecuador, Tungurahua, Rio Pastaza watershed, ex E. Doremus: DMNH 56470; “ Ecuador:” USNM 316099 (ex Henderson Colln, ex Evezard Colln, as P. piperitus roseolabrum ), USNM 532641 (ex Fulton, as Eurytus piperitus roseolabrum ). Brazil, Amazonas, Igarapé Anibá [<100 m], Rio Amazonas, Olalla leg./1936: CMC C11210;?, Tapajos River ( Simone 2006). Peru, San Martín, Huallaga; “ Peru:” CMC C11743.

Remarks. This species is known from northern Peru and northwestern Brazil ( Ramírez et al. 2003; Simone 2006), and was not mentioned under this name by Breure and Borrero (2008) for the Ecuadorian malacofauna. It may be restricted to lowlands (Huallaga is ~ 310m; “Rio Pastaza watershed” may refer to anywhere in a wide range of elevations). The date of Sowerby’s publication of P. piperitus was erroneously given as 1833 by Breure (1979). Recently, Petit (2009) has given a valuable overview on the main publications of the Sowerby family; from his paper the correct date (1837) can be extracted (see also Shaw 1909). Lots USNM 316099 and 532641 associate this species with Plekocheilus (E.) roseolabrum ( E.A. Smith 1877) , which is considered here as a distinct species from Ecuador.

Figures

FIGURE 17. Plekocheilus (Eurytus). A – B. P. (E.) tricolor (Pfeiffer, 1853), DMNH 141691 (H 52 mm). C – D. P. (E.) lynciculus (Deville & Huppé, 1850), holotype of jacksoni Pilsbry, 1939, ANSP 170694 (H 45.5 mm). E – F. P. (E.) paraguas spec. nov., UVZ 97015 (H 42 mm). G – J. P. (E.) piperitus (Sowerby, 1837). G – H. DMNH 56470. I – J. ICNB.