Caucasocressa menkhorsti, Hausdorf, 2003

Hausdorf, Bernhard, 2003, Revision of the genus Caucasocressa from the eastern Pontic Region (Gastropoda: Hygromiidae), Journal of Natural History 37 (21), pp. 2627-2646 : 2640

publication ID	https://doi.org/ 10.1080/00222930210158762
DOI	https://doi.org/10.5281/zenodo.5271026
persistent identifier	https://treatment.plazi.org/id/2E7D87AB-940C-FFCF-FDEA-FE86FCA2FC74
treatment provided by	Felipe
scientific name	Caucasocressa menkhorsti
status	sp. nov.

Treatment

Caucasocressa menkhorsti View in CoL , sp. n.

(figures 2, 10)

Shell (figure 10). Indistinguishable from C. joannis .

Measurements. Twenty-two km SW of Tercan (N =20): D= 11.9–17.2 mm, B = 13.3 mm; H= 7.2–9.6 mm, B = 8.1 mm; D/H=1.48–2.12, B =1.64.

Remarks. Caucasocressa menkhorsti differs from the related species in the ratio epiphallus: flagellum, (see table 2), which is intermediate between C. tortumensis and C. ibera .

Etymology. This species is named in honour of Dipl.-Ing. Henk P. M. G. Menkhorst, Krimpen/Ijssel, who collected most of the samples on which this revision is based and who discovered this species first.

Type locality. V. Erzincan: 22 km SW Tercan , 1300 m alt., FD09 .

Distribution and material (figure 2). Caucasocressa menkhorsti is known only from the Vileyets Gümüşhane and Erzincan. All listed specimens are paratypes.

Turkey: V. Gümüşhane: 5 km NNW Bayburt , FE06 (det. anat.; ZMH 2895 View Materials ) ; Bayburt 7 km towards Of, FE 06 ( MEN) ; 3.5 km S of Maden , FE14 ( MEN) ; 12 km S of Maden , FE23 ( MEN) ; 8.3 km NW of Kop Geçidi , FE23 ( MEN) ; 20 km NW of Kop Geçidi , FE24 (det. anat.; MEN) . V. Erzincan: 22 km SW Tercan , 1300 m alt., FD09 (det. anat.; holotype NNM, leg. H. Menkhorst, 16 July 1988, measurements: D= 12.3 mm, H= 7.2 mm; MEN) .