Journal
CRUSTACEANA
Volume 76, Issue -, Pages 77-86Publisher
BRILL ACADEMIC PUBLISHERS
DOI: 10.1163/156854003321672845
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A new species of the genus Macrobrachium from northern Oaxaca, Mexico, with abbreviated larval development, is described. Macrobrachium totonacum new species, is similar to M. tuxtlaense and M. vicconi in exhibiting abbreviated larval development, but differs from these in the length of the first pereiopod and relative proportions of the articles of the second pereiopod. Macrobrachium totonacum occurs in the San Antonio River, which originates in the Cueva del Nacimiento del Rio San Antonio where the troglobyte M. villalobosi is found. However, both species differ in pigmentation. the number of rostral spines, proportions of the scaphocerite, relative proportions of the carpus and propodus of the first pereiopod, and the carpus, merus, and propodus of the second pereiopod.
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