Plekocheilus (Eurytus) roseolabrum ( E.A. Smith, 1877 )

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 44

Plekocheilus (Eurytus) roseolabrum ( E.A. Smith, 1877)

( Figs 13 G–I)

Bulimus roseolabrum E.A. Smith 1877: 362 . Type locality: Ecuador, Prov. Loja, Malacatos. Lectotype BMNH 1975135 ( Breure 1978). Plekocheilus roseolabrum (Smith) ; Richardson 1995: 320 (references), Breure & Borrero 2008: 6.

Material. Ecuador, Prov. Loja, Malacatos: BMNH.

Remarks. This taxon is characterized by the dark parietal callus, the granulate surface on shallow elevations of the surface ( Fig. 13 I) and the color pattern with predominantly axial brown streaks. The specimen from Prov. Zamora-Chinchipe, referred to by Breure and Borrero (2008) on the basis of a photograph only, proves to belong to a different, as yet unidentified species. The type locality may be near the town of Malacatos (~ 1675 m), or may refer to a location along the Malacatos River, including higher elevations.

Figures

FIGURE 13. Plekocheilus (Eurytus). A. P. (E.) coloratus (Nyst, 1845), lectotype of ampullaroides (Mousson, 1873), ZMUZ 511584 (H 72 mm). B – D. P. (E.) jimenezi (Hidalgo, 1872), paralectotype MNCN (H 69 mm). E – F. P. (E.) gibbonius (Lea, 1838), holotype USNM 104909 (H 100 mm). G – I. P. (E.) roseolabrum (E. A. Smith, 1877), lectotype BMNH 1975135 (H 34.5 mm), photo P. Crabb.