2 SPECIES OF CALIGIDAE (COPEPODA) PARASITIC ON CULTURED RABBIT FISH (SIGANUS-FUSCESCENS) IN TAIWAN

Two species of caligid copepods, Lepeophtheirus atypicus n. sp. and Ca ligus oviceps Shiino, 1952, are described based on the specimens obtai ned from moribund rabbit fish (Siganus fuscescens) cultured in a cage- net at the Penghus Hatchery Station on Pescadores Island, Taiwan. The new species bears close resemblance to L. goniistii Yamaguti, 1936, bu t can be easily distinguished from it by the armature on leg 3. The an tennule, sternal furca, and leg 4 of these two species also exhibit di fference. Lepeophtheirus species from rabbit fish in Japan reported as L. goniistii by Shiino (1952) is reidentified as L. atypicus n. sp. C aligus truncatogenitalis Roubal, 1981 is proposed to be relegated to t he synonym of C. oviceps.