Tag Archive for: Himalaya

Completed description of Bhutanese Tibetoradix cf. hookeri (Gastropoda, Pulmonata, Lymnaeoidea), with species-specific, environmentally induced decollation

Authors: E. Gittenberger, K. Tobgay
Basteria, 87 (2): 139-140

Abstract

In two samples of Tibetoradix cf. hookeri, collected at different altitudes, the shells differ by being decollated at the highest locality and not so at the lowest. Potential decollation is hypothesized to be an adaptive character state enabling a longer lifespan at higher altitudes in the Himalaya.

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Download articleArtikel Completed description of Bhutanese <em>Tibetoradix</em> cf. <em>hookeri</em> (Gastropoda, Pulmonata, Lymnaeoidea), with species-specific, environmentally induced decollation

Two high-altitude species of molluscs, new for Bhutan (Bivalvia, Sphaeriidae – Gastropoda, Lymnaeidae)

Authors: E. Gittenberger, K. Tobgay, C. Gyeltshen, H. Nesemann
Basteria, 85 (1): 13-17

Abstract

Pisidium stewarti and Tibetoradix cf. hookeri, two species that are known to occur at conditions that nowadays prevail at high altitudes, are reported from Bhutan for the first time. The records mark the southeastern border of the known recent occurrences for both species.

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Download articleArtikel Two high-altitude species of molluscs, new for Bhutan (Bivalvia, Sphaeriidae – Gastropoda, Lymnaeidae)

Amazing Paralaoma servilis (Gastropoda, Pulmonata, Punctidae) in Nepal

Authors: E. Gittenberger, P.B. Budha, R.A. Bank
Basteria 84 (1-3): 76-82

Abstract

The finding of Paralaoma servilis in a remote area along a Beni-Jomsom walking trail in Mustang district (Nepal) in 1973 is published for the first time. This is the first record for the entire Himalaya. The species has not conspicu­ously extended its range since then. Its occurrence in Nepal has not even been confirmed recently. Some references to the literature about this widely distributed gastropod are added. The factors underlying its impressive regional inva­siveness are still unclear. A list of synonyms is provided, and a short overview is given on its worldwide distribution.

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Download articleArtikel Amazing <em>Paralaoma servilis</em> (Gastropoda, Pulmonata, Punctidae) in Nepal