Abstract
Three species ofAsterocheres, including two new species, are reported as associates of sponges in shallow Antarctic water.Asterocheres spinosussp. 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. InA. raisp. 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 forA. hirsutusBandera, Conradi and López-González, 2005, recorded previously from the Antarctic.
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