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swimmeret

   Also found in: Dictionary/thesaurus 0.01 sec.
swimmeret [‚swim·ə‚ret]
(invertebrate zoology)
Any of a series of paired biramous appendages under the abdomen of many crustaceans, used for swimming and egg carrying.


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This behavior may be repeated several times, until an individual becomes fatigued, after which they often attempt to orientate towards the seabed using their swimmerets (Watson, 1989).
Female lobsters have wider tails than males, and their first set of swimmerets is feathery, while males' are bony.
Aside from the added breadth, females'' swimmerets (the appendages under the tale) are light and feathery unlike the males'' which are bony and hard.
 
 
 
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