Plekocheilus (Eurytus) doliarius

Borrero, Francisco J. & Breure, Abraham S. H., 2011, The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas, Zootaxa 3054, pp. 1-59 : 45

Plekocheilus (Eurytus) doliarius ( Da Costa, 1898)

( Figs 15 I–J)

Strophocheilus (Eurytus) doliarius Da Costa 1898 : 84. Type locality: Ecuador, Paramba. Lectotype BMNH 1907.11.21.117 ( Breure 1979). Neubert and Janssen 2004: 208, pl. 1 fig. 1 depicts a paralectotype (SMF 9513).

Distribution.?, “ New Granada,” ex Walton: DMNH 150979 partim; “Sao Pablo, Columbia,” ex Rolle, Walker Colln: UMMZ 147712. Ecuador, Carchi, Hacienda Paramba: BMNH, RBINS, SMF ( Breure & Borrero 2008).

Remarks. P. doliarius bears similarity with P. (E.) gibbonius ( Lea, 1838) , a species that has not been reported from southern Colombia. Examination of the type material of both species reveals differences in shape and sculpture. We tentatively consider P. doliarius a distinct taxon. The sculpture of the shell places this taxon in the Group of P. cardinalis , from which it differs by the uniform color and the more regularly globose last whorl. Occurrence of this species in Colombia has not been confirmed. “Sao Pablo, Columbia ” may refer to any of a great number of locations named San Pablo, both in Colombia and in Ecuador; it is likely that it refers to a location near the border between these two countries. “Paramba,” in northwestern Ecuador, is located at approximately 1050 m.

Figures

FIGURE 15. Plekocheilus (Eurytus). A – B. P. (E.) jimenezi (Hidalgo, 1872), lectotype of oligostylus Pilsbry, ANSP 170696 (H 71 mm). C – D. P. (E.) taylorianus (Reeve, 1848), lectotype BMNH 1874.12. 11.271 (H 57.5 mm), photo P. Crabb. E – F. P. (E.) cardinalis (Pfeiffer, 1853), lectotype ZMB 112721 (H 42 mm), photo L. Matias. G – H. P. (E.) castaneus (Pfeiffer, 1845), ANSP 78580 (H 65 mm). I – J. P. (E.) doliarius (Da Costa, 1898), lectotype BMNH 1907.11. 21.117 (H 55.5 mm), photo P. Crabb. K – M. P. (E.) lugubris (Dunker, 1882), MZSP 49310 (H 56 mm). N – O. P. (E.) incognitus spec. nov., holotype UAM (H 56 mm).