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Type: Article
Published: 2015-02-27
Page range: 202–210
Abstract views: 27
PDF downloaded: 1

Chordodes combiareolatus, a new species of horsehair worms (Nematomorpha) from Nagaland, India, with further comments on Chordodes moutoni

Zoological Museum and Institute, Biocenter Grindel, Matrin-Luther-King-Platz 3, University of Hamburg, 20146 Hamburg, Germany.
Department of Zoology, Kohima Science College (Autonomous), Jotsoma, Nagaland, 797002, India.
Department of Zoology, North-Eastern Hill University, Shillong, 793022, India.
Nematomorpha Gordiida Chordodes combiareolatus new species hairworm

Abstract

The currently known diversity of horsehair worms (Nematomorpha) from India is only 17 species. We report here two female specimens found on two occasions on a terrace paddy field in Tsupo, Viswema, Kohima, Nagaland, India. Although found at the same location, both species differ in their cuticular structures. One is determined as Chordodes moutoni, a species known from China, Malaysia and India. The other specimen shows a new type of cuticular structure, the areoles, which combines characters of both simple areoles and tubercle areoles. This specimen is described as a new species, C. combiareolatus. Both specimens show arrangements on the cuticle, in which a circle of areoles surrounds a region of “naked” cuticle. We interpret these regions as artifacts caused by the breaking off of the central crowned areoles, leaving only the circumcluster areoles behind.