Zoological Studies

The Brachyuran Crabs (Crustacea: Decapoda: Eumedonidae and Portunidae) Symbiotic with Echinoderms in Taiwan

Peter K. L. Ng and Ming-Shiou Jeng (1999) Five species of brachyuran crabs in 2 families (Eumedonidae and Portunidae) are reported as symbiotic with echinoderms in Taiwan. Echinoecus pentagonus is associated with sea urchins (Echinoidea), while Harrovia albolineata, Permanotus purpureus, and Tiaramedon spinosum are reported from featherstars (Crinoidea). All four are eumedonids. One portunid, Lissocarcinus orbicularis, is reported from sea cucumbers (Holothuroidea). Of these, 4 species, Echinoecus pentagonus, Harrovia albolineata, Permanotus purpureus, and Lissocarcinus orbicularis are new records for the island. Specimens previously recorded as Harrovia elegans are here shown to be H. albolineata instead.