The systematic position ofBenthanoscia longicaudataLemos de Castro, 1958 (Isopoda: Oniscidea: Crinocheta)

A new species of Benthana (Crustacea: Isopoda: Philosciidae) from southern Brazil

“…In B. olfersii studied here, one male and one female of similar size were examined and had this same dimorphism and so this species should be included in the subgenus Benthanoscia, in which dimorphism on male exopodites is an autapomorphy (LEISTIKOW & ARAUJO 2006). Therefore, by lacking this dimorphism (autapomorphy), the new species is not included in the subgenus Benthanoscia.…”

“…Five species have been reported in the state of Rio Grande do Sul (RS): B. picta Araujo & Buckup, 1994, B. taeniata Araujo & Buckup, 1994 serrana Araujo & Lopes, 2003, B. trinodulada Araujo & Lopes, 2003, and B. araucariana Araujo & Lopes, 2003. The genus is characterized by two autapomorphies: the cordiform shape of the male pleopod 1 exopod with a lateral dentiform protusion, and the robust distally dentate seta on the carpus of pereiopod 1, slightly merged with the cuticular stalk (LEISTIKOW 2001, LEISTIKOW & ARAUJO 2006. LEISTIKOW (2001) proposed a phylogeny of the South American Philosciidae that he considered paraphyletic.…”

“…LEISTIKOW & ARAUJO (2006), however, proposed that Benthanoscia should be interpreted as a subgenus of Benthana with sexually dimorphic uropods as an autapomorphy.…”

New species and new records of Benthana Budde-Lund, 1908 (Isopoda: Oniscidea: Philosciidae) from southern Brazil

“…The genus Benthana Budde-Lund, 1908 includes 25 species: 22 recorded from Brazil, one (Benthana picta (Brandt, 1833)) from Brazil and Paraguay, and two dubious species from Chile (B. angustata (Nicolet, 1849) and B. bilineata (Nicolet, 1849)) (Andersson 1960;Schmalfuss 2003;Leistikow & Araujo, 2006;Sokolowicz et al, 2008;Campos-Filho & Araujo, 2011;Campos-Filho et al, 2013). In southern Brazil eight species of Benthana are recorded: B. araucariana Araujo & Lopes, 2003, B. guayanas Campos-Filho, Costa & Araujo, 2013, B. itaipuensis Campos-Filho & Araujo, 2011, B. longicornis Verhoeff, 1941, B. serrana Araujo & Lopes, 2003, B. taeniata Araujo & Buckup, 1994 trinodulata Araujo & Lopes, 2003 and B. picta (Brandt, 1833).…”

Two new species ofBenthanaBudde-Lund, 1908 (Crustacea: Isopoda: Philosciidae) from Brazil

“…The genus Benthana Budde-Lund, 1908 includes 21 species (two dubious species from Chile excluded) (Schmalfuss 2003;Leistikow and Araujo 2006;Sokolowicz et al 2008;Campos-Filho and Araujo 2011). All species are recorded from Brazil, and only one, Benthana picta (Brandt, 1833), is also found in Paraguay (Andersson 1960;Araujo et al 1996;Schmalfuss 2003).…”