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First Haplocyclops Kiefer (Crustacea, Copepoda) from Indian subterraneanwaters : the most reduced free-living cyclopoid

Published online by Cambridge University Press:  15 February 2009

T. Karanovic  and
Y. Ranga Reddy
T. Karanovic
Affiliation:
Western Australian Museum, Locked Bag 49, Welshpool DC WA 6986, Perth, Western Australia, Australia.
Y. Ranga Reddy
Affiliation:
Acharya Nagarjuna University, Department of Zoology, Nagarjunanagar 522510, Andhra Pradesh, India.
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Abstract

A new species of small cyclopoids from subterranean waters of India is described in a newly established subgenus,Kiefercyclops n.sg., of the genus Haplocyclops Kiefer, 1952. Genital double-somite with ovipores situated in the posterior half,antennula without the lateral seta on the ultimate segment, and caudal rami with the lateral seta inserted in the proximal half areamong the most important characters of H. (K.) fiersi n.sp., that warrant its position in the genus Haplocyclops. Also, the newspecies differs from the other six congeners by several autapomorphic characters, most of them being reductions in armatureand/or segmentation of the appendages. In particular, the degree of reductions concerning the segmentation of the swimminglegs makes it the most reduced free-living cyclopoid, with both rami of third and fourth legs, as well as the endopod of secondleg being one-segmented in both sexes. A key to species of Haplocyclops is given at the end of this paper.

Keywords

copepodtaxonomygroundwaterstygofaunanew subgenusnew species
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 41 , Issue 2 , June 2005 , pp. 83 - 92
Copyright
© Université Paul Sabatier, 2005

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