Journal of the Marine Biological Association of the United Kingdom

Research Article

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

Il-Hoi Kima1 and Gi-Sik Mina2 c1

a1 Department of Biology, Kangnung National University, Kangnung 210-702, Republic of Korea

a2 Department of Biological Sciences, Inha University, Incheon, 402-751, Republic of Korea

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.

(Received November 23 2012)

(Accepted December 05 2012)

(Online publication March 26 2013)

Keywords

  • Asterocheres ;
  • Copepoda;
  • new species;
  • A. spinosus ;
  • A. rai ;
  • Antarctic;
  • sponge association

Correspondence

c1 Correspondence should be addressed to: G.-S. Min, Department of Biological Sciences, Inha University, Incheon, 402-751, Republic of Korea email: mingisik@inha.ac.kr