Plekocheilus (Aeropictus) tenuissimus Weyrauch, 1967

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 15

Plekocheilus (Aeropictus) tenuissimus Weyrauch, 1967

( Figs 5 A–C)

Plekocheilus (Orcesiellus) tenuissimus Weyrauch 1967: 469 , figs 23, 50. Type locality: Ecuador, Prov. Pichincha, Tandayapa, 2500 m. Holotype FML 3364. Plekocheilus tenuissimus Weyrauch ; Richardson 1995: 323 (references).

Material. Ecuador, Pichincha, Tandayapa, ca. 2500 m, L. Ponce leg.: FML 3364.

Remarks. Plekocheilus tenuissimus was hitherto only known from the type specimen. Recently some material was collected (A. González, pers. comm.), tentatively identified as this species, which suggests that this taxon also occurs in northern Ecuador (Prov. Carchí, El Laurel, 2500 m). Further evidence is needed to confirm its presence in northwestern Ecuador and its relationship with P. calliostoma , to which it may prove to be closely allied.

Figures

FIGURE 5. Plekocheilus (Aeropictus). A – C. P. (A.) tenuissimus Weyrauch, 1967, FML 3364 (H 28 mm). D – F. P. (A.) calliostoma (Dohrn, 1882), CMC C 13263. G – L. P. (A.) succineoides (Petit de la Saussaye, 1840). G – I. Syntype MNHN 21884, photo V. Héros. J – L. Lectotype of latilabris Pfeiffer, 1855, BMNH 1975144, photo P. Crabb. M – P. P. (A.) guentheri (Sowerby, 1892). M – N. Syntype of guildingi Dohrn, ZMB 101799, photo L. Matias. O – P. ANSP 104845 (H 36.4 mm). Q – R. P. (A.) succineoides cleeforum Breure, 1977, ZMA (H 37.5 mm). S – U. P. (A.) cathcartiae (Reeve, 1848), lectotype BMNH 1975288, photo P. Crabb. V – W. P. (A.) delicatus Pilsbry, 1935, paratypes ANSP 424990 (H 31, 29.5 mm). X – AA. P. (A.) quadricolor (Pfeiffer, 1848), lectotype BMNH 1975283 (H 30.5 mm).