Acroperus tupinamba: Difference between revisions

'''Acroperus tupinamba''' is a species of crustaceans. Its name refers to the largest tribe of [[indigenous people]]s inhabiting Brazil before European [[colonization]]. It was first found among decomposing leaves in [[Planaltina, Federal District|Planaltina]], [[Distrito Federal, Brazil]]. It is a small ''Acroperus'', the length of the female at or below 0.6mm. Its body is egg-shaped, with its maximum height in its body's second quarter. Its dorsal margin is quite arched, with its posteroventral angle [[Dermal denticle|denticles]] being very small. It carries about 35 to 40 ventral [[seta]]e, with its posterior setae being longer than in cogenerate species. Its head has a low [[keel]], the distance between its eye and the margin of its keel being equal to its eye diameter, which measures 1.5–2 times more than the [[ocellus]]. The species' head, antennule and [[labrum (arthropod mouthpart)|labrum]] is the same as for the genus. The postabdomen narrows distally, the length of which is about 3.2 its height. Setules near the base of its postabdominal claws are short. Its [[antenna (biology)|antenna]] comprises less than 1/5 of its body length. All of its apical setae are of the same thickness and length. ''A. tupinamba'' differs from the other known species of its genus: ''[[Acroperus harpae|A. harpae]]'' and ''[[Acroperus angustatus|A. Angustatus]]'', by its smaller size; long posterior setae of the valves; a shorter, wider postabdomen; short setules near the base of its postabdominal claw; and the characteristic morphology of its fourth [[exopodite]]'s setae 5–6, which is similar to those of ''[[Nicsmirnovius]]''.<ref name="Authority">Sinev, Artem Y., and LOURDES MA Elmoor-Loureiro. "Three new species of chydorid cladocerans of subfamily Aloninae (Branchipoda: Anomopoda: Chydoridae) from Brazil." Zootaxa 2390 (2010): 1-25.</ref>