Xanthid Crabs in the Corals, Pocillopora Damicornis and P. Verrucosa of Southern Taiwan
Abstract:Thirty-six species of xanthid crabs were collected from two coral species; of these, 356 individuals of 25 species and 444 individuals of 21 species were from Pocillopora damicornis and P. verrucosa, respectively. Trapezia formosa, T. cymodoce, T. septata, T. digitalis, T. garthi, T. ferruginea, and Pilodius sp. a were abundant in both corals, but T. cheni was abundant in the coral P. verrucosa collected from the low-tide area off Orchid Island. Trapezia digitalis, T. formosa, and T. garthi were confined to the low-tide corals. About 30 to 75% of the adults of T. cymodoce, T. ferruginea and T. septata existed singly or formed a single pair in a given coral head in both corals collected from the subtidal areas, but it never occurred in corals collected from the low-tide areas. The carapace width of females was significantly larger than that of paired males in most of Trapezia spp. The carapace width of the Trapezia collected from low-tide corals is smaller than that collected from subtidal corals.
Document Type: Research Article
Publication date: 1987-09-01
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