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Three species of Asterocheres (Copepoda: Siphonostomatoida: Asterocheridae) from shallow Antarctic water

Published online by Cambridge University Press:  26 March 2013

Il-Hoi Kim
Affiliation:
Department of Biology, Kangnung National University, Kangnung 210-702, Republic of Korea
Gi-Sik Min*
Affiliation:
Department of Biological Sciences, Inha University, Incheon, 402-751, Republic of Korea
*
Correspondence should be addressed to: G.-S. Min, Department of Biological Sciences, Inha University, Incheon, 402-751, Republic of Korea email: [email protected]

Abstract

Three species of Asterocheres, including two new species, are reported as associates of sponges in shallow Antarctic water. Asterocheres spinosus sp. nov. has a combination of diagnostic features: mandibular palp is one-segmented, caudal ramus is 1.88 times as long as wide, antennule is 20-segmented in the female and 18-segmented in the male, urosome is spinulose, and legs 1 and 2 display weak sexual dimorphsims. In A. rai sp. nov., the body is large, 1.66 mm long in the female, the lateral margin of genital double-somite is smooth without setules or spinules, the exopod of antenna bears only a single seta, with two mucilaginous substances transformed from setae, and the third endopodal segment of leg 1 bears a prolonged distal process. A supplementary description is given for A. hirsutus Bandera, Conradi and López-González, 2005, recorded previously from the Antarctic.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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References

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