Abstract
A new species, Strongylacron glabrum sp. n. is described from intertidal mudflats in the Korean peninsula. The new species is assigned to the monospecific genus Strongylacron Gee & Huys, 1996 in accordance with the generic morphological features of the rostrum, antennary exopod, and thoracic legs. However, Strongylacron glabrum sp. n. is clearly distinguished from the type species, Strongylacron buchholtzi (Boeck, 1873), by the naked anterior margin of rostrum, the elongate exopod and endopodal lobe of female P5 approximately 3.5 and 2.7 times as long as width, respectively, and the presence of 8–10 rod-like projections on prosomites. The genus Strongylacron is first recorded from Korean waters by the present study.
Highlights
The harpacticoid copepod genus Strongylacron Gee & Huys, 1996 belonging to the family Cletodidae T
1904 was established by Gee and Huys (1996) as a part of an effort to resolve the relationship among members of Enhydrosoma Boeck, 1873
In the revision of Enhydrosoma, Gee (1994) first proposed the buchholtzi-species group representing differences from others in the rostrum, antenna, maxillule and male P3 endopod. He suggested that this group should be removed from Enhydrosoma
Summary
The harpacticoid copepod genus Strongylacron Gee & Huys, 1996 belonging to the family Cletodidae T. Exopod 3-segmented, slightly longer than endopod; each segment ornamented with rows of outer spinules and inner setules; exp-1 and -2 with outer spine, respectively; exp-3 with 2 outer spines, 2 apical setae, and 1 posterior tube pore.
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