Plekocheilus (Eurytus) episcopalis corticosus

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 26

Plekocheilus (Eurytus) episcopalis corticosus ( Sowerby III, 1895)

( Figs 9 C, 10D–G)

Bulimus (Eurytus) corticosus Sowerby III 1895 : 214, pl. 13 fig. 2. Type locality: Colombia, Bogotá. Lectotype BMNH 1907.11.21.110 ( Breure 1978). Plekocheilus corticosus (Sowerby) ; Richardson 1995: 307 (references, synonymy). Plectostylus apolinari Pilsbry 1935: 83 , pl. 6 figs 1–2. Type locality: Colombia, region of Villavicencio. Holotype ANSP 164566.

Material. Antioquia, Frontino: DMNH 141721 (ex M.L. Walton) [see remarks]; Cundinamarca, Monteredondo, 1370 m, P.I. Scheible leg./1960: FMNH 114075; Monteredondo, km 75 [sic, probably km 54] on road Bogotá–Villavicencio, Scheible & H. Frohmund leg./1961: FMNH 114165; Monteredondo, Scheible leg./1959, 1370 m: FMNH 114167; Bogotá: BMNH 1879.9.6.13-14; Gachetá, A.P. Infante leg./2010; Meta, region of Villavicencio, Hno. Apolinar María leg.: ANSP; Pipiral [sic, = Piperal, km 73 road Bogotá–Villavicencio], V. Guevara leg./1933: DMNH 141724.

Remarks. This taxon differs from P. e. episcopalis by having (1) a stronger columellar fold; (2) a relatively smaller aperture. Piperal is a small village on the road from Bogotá to Villavicencio, 600–700 m elevation. Gachetá is NE of Bogotá. All localities are on the eastern escarpments of the Cordillera Oriental. The specimen from Antioquia, Frontino is only tentatively referred to this taxon; it is the only record from the Cordillera Central for this species. Although elevations are not given in the labels, an altitudinal range of 450–1800 m may be inferred from the localities above.

Figures

FIGURE 9. Plekocheilus distribution. A. P. (Aeropictus) cathcartiae, P. (A.) calliostoma, P. (A.) species, P. (A.) delicatus and P. (A.) guentheri. B. P. (A.) s. succineoides, P. (A.) s. cleeforum and P. (A.) s. zilchi. C. P. (Eurytus) episcopalis corticosus, P. (E.) e. auriformis, P. (E.) plectostylus, P. (E.) dalmasi (type locality “ Sierra Nevada de Santa Marta ” not shown) and P. (E.) subglandiformis. D. P. (P.) bigener, P. (P.) glandiformis and P. (P.) taquinensis.