Plekocheilus (Eurytus) episcopalis episcopalis (Pfeiffer, 1855)

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 episcopalis (Pfeiffer, 1855)

( Figs 10 A–C)

Bulimus episcopalis Pfeiffer 1855b: 115 . Type locality: Colombia, Bogotá. Lectotype BMNH 1953.11.30.1 ( Breure 1978). Plectostylus [sic] episcopalis (Pfeiffer) ; Richardson 1995: 297 (references).

Material. Cundinamarca, Bogotá: CM 62.4697 (ex Hartman Colln, as P. coloratus lamarckianus ), ANSP 78576 (leg./1900), USNM 532635 (ex Fulton), UMMZ 242808 (Marsh Colln), UMMZ 147714 (partim, ex Tomlin & C. Caziot); Bogata [sic, Bogotá]: FMNH 31122 (W.F. Webb Colln).

Remarks. We consider now this taxon to differ only subspecifically from P. e. auriformis and P. e. corticosus , despite the fact that there is no precise locality known. It differs from both taxa by (1) having the columella less folded; (2) having a larger aperture that is more ovate; (3) the sculpture of the last whorl being granulate, but giving a slight impression of being arranged in spiral structures ( Fig. 10 C).

Figures

FIGURE 10. Plekocheilus (Eurytus). A – C. P. (E.) episcopalis episcopalis (Pfeiffer, 1855), lectotype BMNH 1953.11. 30.1 (H 53.5 mm), photo P. Crabb. D – G. P. (E.) e. corticosus (Sowerby, 1895). D – F. Lectotype BMNH 1907.11. 21.110 (H 54 mm), photo P. Crabb. G. Ibidem, holotype of apolinari Pilsbry, 1935, ANSP 164566 (H 55.8 mm). H – K. P. (E.) e. auriformis (Da Costa, 1904). H – J. Holotype BMNH 1907.11. 21.112 (H 68.0 mm), photo P. Crabb. K. ANSP 174434 (H 71.0 mm). L – N. P. (E.) subglandiformis (Mousson, 1873), lectotype ZMUZ 511633 (H 40 mm). O – Q. P. (E.) plectostylus (Pfeiffer, 1848). O – P. ANSP 362089 (H 49.4 mm). Q. UVZ 83018 (H 54 mm). R – S. P. (E.) piperatoides Pilsbry, 1901, lectotype ANSP 263536 (H 29.1 mm). T – U. P. (E.) argenteus (Jousseaume, 1900), USNM 532637 (H 29 mm). V – W. P. (E.) dalmasi (Dautzenberg, 1900), lectotype RBINS / MT 668 (H 25 mm), photo R. Sablon.