Gladioferens Henry (Copepoda: Calanoida) discovered in Antarctica: G; antarcticus sp. nov. described from a lake in the Bunger Hills

A new species of Gladioferens is described from a freshwater lake in the Bunger Hills, Greater Antarctica. A key to the six species of Gladioferens is provided for both sexes. Most species of the subgenus containing G. antarcticus sp. nov. are remarkable in possessing asymmetries in the second legs...

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Bibliographic Details
Published in:Polar biology 1994-05, Vol.14 (4), p.253-259
Main Author: BAYLY, I. A. E
Format: Article
Language:English
Subjects:
Biological and medical sciences
Crustacea
Freshwater
Fundamental and applied biological sciences. Psychology
Invertebrates
Systematics. Geographical distribution
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Summary:A new species of Gladioferens is described from a freshwater lake in the Bunger Hills, Greater Antarctica. A key to the six species of Gladioferens is provided for both sexes. Most species of the subgenus containing G. antarcticus sp. nov. are remarkable in possessing asymmetries in the second legs (male) and fourth legs (female). This suggests that the mating behaviour of these species may be radically different from that in most heterarthrandrian calanoids and calls for further study. However, G. antarcticus is more primitive than its consubgeners in having, in the male, symmetrical second legs and 3-segmented endopods in the fifth legs. The genus shows a highly disjunct distribution (Australia, New Zealand and Bunger Hills) and its biogeography is now of outstanding interest.
ISSN:0722-4060
1432-2056
DOI:10.1007/BF00239173