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Free Content Observations on Pinnaxodes floridensis, A New Species of Pinnotherid Crustacean Commensal in Holothurians

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Pinnaxodes floridensis is described from the northern part of the Gulf of Mexico. Sexual dimorphism in this species involves size, shape of the carapace and frontal area, and degree of fusion of ischium and merus of outer maxillipeds, as well as shape of the abdomen. Adult and pre-adult crabs were recovered from the cloaca and respiratory tree of the holothurian Theelothuria princeps where they normally filter their food from water circulated by the host. Juvenile crabs were recovered from anterior regions of the holothurian digestive tract. The ectoproct bryozoan Triticella elongata is reported from P. floridensis.

Document Type: Research Article

Publication date: January 1, 1961

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  • 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.
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