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Revision of Apodopsyllus (Copepoda, Harpacticoida), including Two New Species and a Redescription
Bruce C. Coull and E. W. Hogue
Transactions of the American Microscopical Society
Vol. 97, No. 2 (Apr., 1978), pp. 149-159
Stable URL: http://www.jstor.org/stable/3225587
Page Count: 11
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The genus Apodopsyllus, commonly found interstitially in fine sands, is split into two species groups, separated primarily on the structure of the first leg. In the "littoralis group" (10 species), the exopod and endopod are of about equal length; in the "madrasensis group" (two species) the endopod is at least 2 1/2 times as long as the exopod. A. unguiformis n. sp. belongs to the "madrasensis group" and differs from the other known species in the group in P5 shape and setation. A. bermudensis n. sp. belongs to the "littoralis group" and differs from its congeners in P5 shape and setation and from the most closely allied species in A1 and A2 segmentation. A. vermiculiformis Lang differs in some details from Lang's description and figures and may be somewhat variable in A2 exopod segmentation. A. reductus (Petkovski) is considered incertae sedis. A key to all known species is presented.
Transactions of the American Microscopical Society © 1978 American Microscopical Society