Plekocheilus (Eurytus) mundiperditi Haas, 1955

(Figs 6 A─C, 9E)

Plecocheilus (Eurytus) mundi-perditi Haas, 1955: 378, fig. 80. Type locality: Venezuela, State of Bolívar, Chimantá massif near Río Tirica, 2100 m; holotype FMNH 52436.

Material. Venezuela, Estado Bolívar, Chimantá massif, 2100 m, J.A. Steyermark leg., 4.ii.1955 (FMNH 52436/ holotype, 52437/1 paratype); Ibidem, central part of Chimantá massif, slopes bordering tributary of east branch of headwaters of Río Tirica, 2450 m, J.A. Steyermark & J.J. Wurdack leg., 27.iii.1955, in Bonnetia forest (FMNH 52440/1 paratype); Ibidem, Aparamán-tepui above Río Tirica, 2120 m, J.A. Steyermark & J.J. Wurdack leg., 26.ii.1955 (FMNH 52438/1 paratype); Ibidem, Toronó-tepui, bordering valley of Caño Mojado, 2250 m, J.A. Steyermark leg., 21.ii.1955 (FMNH 52439/1 paratype); Ibidem, along trail between Río Tirica and lower summit camp, 1800 m, J.A. Steyermark & J.J. Wurdack leg., 26.ii.1955 (FMNH 52441/1 paratype); Ibidem, Eruado-tepui [= Murey-tepui], 2300 m, R.W. McDiarmid leg., 24.ii.1978 (UF 22945/1 + 5 juv., 22946/2); Ibidem, summit of Apacará-tepui, ca. 2150 m, 5° 19’ N 62° 12’ W, S. Gorzula & O. Huber leg., 11─ 14.iii.1986, in herbaceous vegetation (RMNH 112030 /1).

Shell dimensions are given Table 1.

Remarks. This species is widespread on the Chimantá massif and is characterized by its dark brown colour and its sculpture of puckered spiral bands (Fig. 9E).

Plekocheilus (Eurytus) fusitorsus (Oberwimmer., 1931) (n=2)