Plekocheilus (Eurytus) juliani Haas, 1955

Breure, Abraham S. H., 2009, New Orthalicidae (Mollusca, Gastropoda) from Venezuelan Guayana: unravelling secrets from the Lost World, Zootaxa 2065, pp. 25-50 : 32

Plekocheilus (Eurytus) juliani Haas, 1955

( Figs 5 D─F, 9F)

Plecocheilus (Eurytus) juliani Haas, 1955: 375 , fig. 78. Type locality: Venezuela, State of Bolívar, northwest part of Chimantá massif, summit of Apacará-tepui, ca. 2100 m; holotype FMNH 49737.

Material. Venezuela, Estado Bolívar, Chimantá massif, summit of Apacará-tepui, 2100 m, 20─ 22.vi.1953, J.A. Steyermark leg. ( FMNH 49737/ holotype, 49738/2 paratypes); Ibidem, northwest part of summit of Abácapa-tepui, J.A. Steyermark leg., 13.iv.1953, in Bonnetia forest ( FMNH 49739/1 paratype); Ibidem, Auyán-tepui, 1970 m, R.W. McDiarmid leg., 26.ii.1978 ( FMNH 22949/ 1 juv.).

Remarks. The intraspecific variation within the type material has been adequately described by Haas. The species is characterized by the oblique streaks and the sculpture of the shell ( Haas 1955: fig. 78; Fig. 9F. A juvenile and broken specimen preserved in ethanol 70% was collected on Auyán-tepui, on the same massif as the type locality.

Figures

FIGURE 5. Shells in Plekocheilus (Eurytus). A ─ C. P. (E.) s o p h i a e spec. nov., holotype UF 24413. Photos R. Lasley. D ─ F. P. (E.) juliani Haas, 1955, holotype FMNH 49737. G ─ I. P. (E.) nebulosus spec. nov., holotype UF 284723. J ─ M. P. (E.) huberi spec. nov. J ─ L. Holotype UF 284764; M. Paratype RMNH 112027. Scale bar— 1 cm.