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Nipponopsalididae Martens 1976

Nipponopsalis Martens & Suzuki 1966

Axel Schönhofer
Containing group: Troguloidea


Superficially similar in external appearance to the European Ischyropsalis and North American Taracus, the south-east Asian genus Nipponopsalis was established by Martens and Suzuki (1966) and later elevated to family level (Martens 1976). Within the Troguloidea, Nipponopsalis is unique for its male genital morphology. The penial glans is separated in three branches, two of which enclose the central one with the stylus. The external branches are pulled back by the internal muscles and are probably readjusted by membraneous pockets that can be inflated by haemolymph pressure. Nipponopsalis appears isolated within the Troguloidea for this peculiar penial morphology that is support by molecular studies (Giribet et al. 2010). In comparison with Taracus and Ischyropsalis, Nipponopsalis differs in the composition of the sternal area, the spination of the chelicerae and in size, which is considerably smaller in average (2-3 mm). Species are known from Korea and Japan and have been collected under logs, from fern roots and in caves.

Other Names for Nipponopsalis Martens & Suzuki 1966


Giribet, G., L. Vogt, A. Pérez González, P. Sharma and A. B. Kury. 2010. A multilocus approach to harvestman (Arachnida: Opiliones) phylogeny with emphasis on biogeography and the systematics of Laniatores. Cladistics 26:408-437.

Martens, J., and S. Suzuki. 1966. Zur Systematischen Stellung Ostasiatischer Ischyropsalididen-Arten (Arachnoidea, Opiliones, Ischyropsalididae). Annotationes Zoologicae Japonensis 39(4):215-221.

Martens, J. 1976. Genitalmorphologie, System und Phylogenie der Weberknechte (Arachnida: Opiliones). Entomologica Germanica 3(1/2):51-68.

About This Page
Many thanks to Angela DiDomenico for the final English check.

Axel Schönhofer
San Diego States University, San Diego, California, USA

Correspondence regarding this page should be directed to Axel Schönhofer at

Page: Tree of Life Nipponopsalididae Martens 1976. Nipponopsalis Martens & Suzuki 1966. Authored by Axel Schönhofer . The TEXT of this page is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Schönhofer , Axel. 2012. Nipponopsalididae Martens 1976. Nipponopsalis Martens & Suzuki 1966. Version 08 July 2012 (under construction). http://tolweb.org/Nipponopsalis/60692/2012.07.08 in The Tree of Life Web Project, http://tolweb.org/

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