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It is titled after the first essay, in which she realizes that a hermit crab she accidentally brought home while beachcombing in the Bahamas still times its activity to the rise and fall of the tides, even in an aquarium in Tucson, Arizona. [1] [2] The crab is a metaphor for a situation in her own life. [2]
A hermit crab emerges from its shell, Coenobita perlatus Outside its shell, the soft, curved abdomen of hermit crabs, such as Pagurus bernhardus, is vulnerable. Hermit crab species range in size and shape, from species only a few millimeters long to Coenobita brevimanus (Indos Crab), which can approach the size of a coconut and live 12–70 years.
The hermit crab gains protection from predators by the sea anemone's stinging, and the sea anemone gains an increase in food from the material thrown up by the hermit crab's movements. [3] The relationship is apparently instigated by the sea anemone, which begins a complex series of manoeuvres in order to mount the shell carried by the hermit ...
Anomura (sometimes Anomala) is a group of decapod crustaceans, including hermit crabs and others. Although the names of many anomurans include the word crab, all true crabs are in the sister group to the Anomura, the Brachyura (the two groups together form the clade Meiura).
Calcinus laurentae is a species of left-handed hermit crab in the family Diogenidae. [1] The common name for Calcinus laurentae is Laurent's Hermit Crab [ 2 ] or Redleg calcinus. [ 3 ] Calcinus laurentae are native to Hawaii [ 4 ] and the Hawaiian word for hermit crab is unauna.
The larger hermit crabs have been known to submerge their entire bodies into the sea water. The saltwater is used to bind the shell to the crabs back through the high salinity in the water. [ 6 ] In addition, water in the shell allows for rehydration, wetting the surface of their gills and abdomen which aids in gas exchange, reducing their body ...
Calcinus seurati, commonly known as Seurat's hermit crab or whitebanded hermit, is a species of hermit crab in the family Diogenidae. [1] It was first described by French carcinologist Jacques Forest in 1951. This species is found in rocky pools where they would be seen crawling out to the wet, algae-covered rocks. [2]
Calcinus verrillii, commonly known as Verrill's hermit crab, is a species of hermit crab in the genus Calcinus which is endemic to Bermuda.It was first described by the American zoologist Mary J. Rathbun and named in honour of the American zoologist Addison Emery Verrill, who spent much time with his students studying the geology and marine fauna of Bermuda.