The behavior of specimens of eleven species of hermit crabs, collected from depths of 110 to 713 meters, was observed in the laboratory (Diogenidae: Clibanarius anomalus, Paguristes spinipes, Paguristes moorei, Paguristes “A”, and Dardanus insignis; Paguridae:
Benthopagurus cokeri [new combination], Pagurus rotundimanus, Pagurus politus, Pylopagurus discoidalis, Parapagurus pictus, and Spiropagurus iris). The aggressive displays executed as individuals approached one another are described for each species. These movements of
the chelipeds and ambulatory legs are similar to those of congeneric species from shallow water. Pagurid hermits exhibited extreme avoidance of conspecific individuals during diurnal observation periods. Specimens of Pagurus politus showed a peculiar “appeasement” behavior
whereby individuals could come closer than usual to one another. The behavior patterns associated with shell fighting are described for four species (Clibanarius anomalus, Paguristes moorei, Dardanus insignis and Pylopagurus discoidalis). Several adaptations of the behavior of
Pylopagurus discoidalis affected by inhabiting scaphapod shells are described.
The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.