Achlidon
Species, family, Macromaxillocarididae, stenopodideanstro, globitic
978-620-1-54719-3
6201547193
112
2013-08-14
45.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Achlidon agrestis is a species of crab in the family Pseudothelphusidae, and the only species in the genus Achlidon. It lives in rivers in Mexico and Costa Rica.Crabs often show marked sexual dimorphism. Males often have larger claws, a tendency which is particularly pronounced in the fiddler crabs of the genus Uca (Ocypodidae). In fiddler crabs, males have one claw which is greatly enlarged and which is used for communication, particularly for attracting a mate. Another conspicuous difference is the form of the pleon (abdomen); in most male crabs, this is narrow and triangular in form, while females have a broader, rounded abdomen. This is due to the fact that female crabs brood fertilised eggs on their pleopods.
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Zoologie
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