Notes on Salmon River oreohelicid land snails, with description of Oreohelix waltoni

Publication Type:

Journal Article

Authors:

Solem, Alan

Source:

Veliger, The Veliger Society, Volume 18, Issue 1, p.16-30 (1975)

Call Number:

A75SOL01IDUS

URL:

http://www.biodiversitylibrary.org/item/137755#page/30/mode/1up

Keywords:

lava rock mountain snail, Oreohelix waltoni, Walton's banded mountain snail

Abstract:

Dissection and analysis of differences for two sympatric species, Oreohelix strigosa strigosa and O. vortex Berry provide data concerning the significance of variations observed in penial structure throughout the genus. Oreohelix waltoni Solem, spec. nov. from John Day Creek, Lucile, Idaho is described. The anatomy and radular structure are illustrated and compared with that of O. idahoensis. Taxa formerly listed as subspecies of Oreohelix jugalis are discussed, with dissections, radular examination with the SEM, and ecological differences showing that O. jugalis, O. intersun, and O. vortex Berry are distinct species.