Plekocheilus (Eudolichotis) distortus ( Bruguière, 1789 ), Bruguiere, 1789

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 50-51

Plekocheilus (Eudolichotis) distortus ( Bruguière, 1789)

( Figs 14 E, 19G–H, O–P)

The different varieties within this widespread species are ill-defined and their variation within the total distribution is poorly known. Further anatomical, morphometric and molecular research is needed. For the time being, we have treated all material as P. distortus .

Bulimus distortus Bruguière 1789: 344 . Type locality: “Indes orientales.” Plekocheilus distortus (Bruguière) ; Richardson 1995: 309 (references and synonymy). Eudolichotis distorta (Bruguière); Simone 2006: 151, fig. 509.

Plecochilus guariensis Jousseaume 1889: 244 , pl. 9 fig. 11. Type locality: La Guaira. Holotype MNHN.

Auris distortus gracilis Pilsbry 1896: 111 , pl. 40 fig. 31. Type locality: Colombia, Cúcuta, Pamploma [Pamplona]. Lectotype ANSP 25422 ( Baker 1963).

Auris distortus sublaevis Pilsbry 1896: 111 , pl. 40 figs 27–30. Type locality: Venezuela, La Guayra, Puerto Cabello, Arva [Aroa]. Lectotype ANSP 25414 ( Baker 1963).

Auris distorta bisuturalis Pilsbry 1896: 112 , pl. 44 figs 81–82. Type locality: Colombia, San José de Cúcuta. Syntype ANSP 25421. Eudolichotis bisuturalis (Pilsbry) ; Simone 2006: 150, fig. 508.

Auris distorta panamensis Pilsbry 1910: 507 , pl. 37 figs 8–9. Type locality: Panama, Canal Zone, between Tabernillo and San Pablo, A. Brown leg./1910. Lectotype ANSP 101314 ( Baker 1963).

Material. Boyacá, Santa María, above Rio Bata, 1200 m, I. López leg./2000: ICNB; Chocó, Arcandi [= Acandí], Keep leg.: UF 109938 [not seen]; Acandí, M. Smith leg./1930: ANSP 150245; Córdoba, Quebrada Cenisa, branch of Rio Canalete, Olsson leg.: ANSP 160149; Cundinamarca, Las Mercedes, road to Fute, Bojacá, 2600–2700 m, Camacho leg./1962: FMNH 187571; Monteredondo, 1300 m, in coffee plantation, leg. 1956: ANSP 323421; Monteredondo, km 75 on road Bogotá–Villavicencio, Scheible & Frohmund leg./1961: FMNH 114169; Monteredondo, km 73 highway Bogotá–Villavicencio: FMNH 84758 (Medem leg.), FMNH 114076 (Medem leg./ 1956), FMNH 114170 (Scheible leg./1959); Meta, Caño Grande, near Villavicencio, S. Rengifo leg./1946: MCZ 177966; near Villavicencio, Hno. Apolinar María leg.: MCZ 80482; Rio Ocoa, 450 m, Richter leg.: MCZ 146359; La Marcarena [= La Macarena], Camp No. 2, far from border of Rio Guayabero, 300–500 m, Medem leg./1959: FMNH 114168; Trin [= El Trin], Upper Rio Guaviare, leg. 1956: ANSP 323487; Upper Rio Güejar country, ca. 400 m, Medem leg./1950: ANSP 196267; Restrepo: MCZ 80483 (ex J. Bequaert), UVZ 81108; Rio Guamal, San Martín, 520 m, Richter leg.: MCZ 145218; San Martín, Vereda La Marina, 420 m, C. Medellín leg./2006: ICNB; Norte de Santander, San José de Cúcuta: ANSP 25420–25421 (syntypes of bisuturalis Pilsbry ); FMNH 72271 (this specimen is labeled “ex ANSP 25421” and “paratopotype,” thus also a syntype); Cucutá [Cúcuta], Hno. Nicéforo María leg.: ANSP 170745.?, Colombia: DMNH 75368, DMNH 183930; Andes of New Granada, ex Cuming Colln: BMNH Acc. no.1829. Panama, Darién, Boca Rio Paya, Wetmore leg./1959: USNM 612109; near Tapalisa River, 2000 ft [~ 600 m], Handley & B.R. Feinstein leg.: USNM 629221; Empire, Canal Zone, E. Goldman leg.: USNM 424151; Barro Colorado Island, Canal Zone, J. Zetek leg.: UMMZ 146753. Venezuela, Carabobo, Puerto Cabello: USNM 105193; Táchira, Estación Táchira: FMNH 145881; La Fría: UMMZ 48017, UMMZ 232626 (ex Marsh). “San Estaban Venezuela ” [= Esteban?], Marsh Colln: UMMZ 232625; “ Venezuela:” CMC C10880– C10884, CMC C11711, UMMZ 232628.

Altitudinal range. The localities listed comprise a range from just above sea level (Acandí, Rio Paya) to 2700 m.

Remarks. This species ranges from Panama, across all Colombian cordilleras to the eastern plains and into Venezuela. Although we present few records, P. distortus is known to be widely distributed in Venezuela; Tello (1975) reported this species from the following additional Estados in Venezuela: Anzoátegui, Distrito Federal, Guárico, Miranda, Nueva Esparta, and Sucre. There are many locations named San Esteban in Venezuela, including those in Estados Lara, Falcón and Carabobo. Thus, the distribution of P. distortus is primarily in northern Venezuela extending to the eastern end of this country. However, its distribution in the Meta area of Colombia (this paper) and in Brazil ( Simone 2006), suggests a broader distribution in northern South America.

Figures

FIGURE 14. Plekocheilus distribution. A. P. (Eurytus) gibbonius, P. (E.) cardinalis and P. (E.) castaneus. B. P. (E.) pulicarius, P. (E.) semperi, P. (E.) tetensii and P. (E.) lugubris. C. P. (E.) lynciculus. D. P. (E.) caramitagua. E. P. (Eudolichotis) distortus.