Abstract:The genus Pectenoniscus Andersson, 1960 currently presents two described species, one epigean, Pectenoniscus angulatus Andersson, 1960, from Nova Teutônia municipality, Santa Catarina state (Southern Brazil) and the hypogean Pectenoniscus liliae Campo-Filho, Bichuette and Taiti, 2019, found in two caves in the Serra do Ramalho karst area (Carinhanha municipality), Bahia state (northeastern Brazil). Recent surveys in karstic areas of Minas Gerais and Bahia revealed six new cave species from this genus, which ar… Show more
“…5C-E). Two other troglobitic styloniscid species occur in this cave: one terrestrial (Pectenoniscus santanensis Cardoso, Bastos-Pereira, Souza & Ferreira, 2020a) and one new amphibious species. A peculiar condition is observed regarding the distribution of the two styloniscid species.…”
A new genus of Styloniscidae, Chaimowicziagen. nov., is described with two new species: Chaimowiczia tatussp. nov. from Gruta do Padre cave (Santana, Bahia) and Chaimowiczia uaisp. nov. from Lapa d’água do Zezé cave (Itacarambi, Minas Gerais). The new genus and species were allocated into the subfamily Iuiuniscinae, hitherto monotypic, by the pronounced rectangular-shaped lateral pereonites epimera, dorsal surface smooth, body outline continuous without a gap between pereon and pleon, and pleonites 3 to 5 developed forming tips. The two species of Chaimowiczia gen. nov. differ in the shape of cephalon antennal lobes, pereonite 1 epimera, pleonite 5 posterior margin and uropod exopod and endopod proportion.
“…5C-E). Two other troglobitic styloniscid species occur in this cave: one terrestrial (Pectenoniscus santanensis Cardoso, Bastos-Pereira, Souza & Ferreira, 2020a) and one new amphibious species. A peculiar condition is observed regarding the distribution of the two styloniscid species.…”
A new genus of Styloniscidae, Chaimowicziagen. nov., is described with two new species: Chaimowiczia tatussp. nov. from Gruta do Padre cave (Santana, Bahia) and Chaimowiczia uaisp. nov. from Lapa d’água do Zezé cave (Itacarambi, Minas Gerais). The new genus and species were allocated into the subfamily Iuiuniscinae, hitherto monotypic, by the pronounced rectangular-shaped lateral pereonites epimera, dorsal surface smooth, body outline continuous without a gap between pereon and pleon, and pleonites 3 to 5 developed forming tips. The two species of Chaimowiczia gen. nov. differ in the shape of cephalon antennal lobes, pereonite 1 epimera, pleonite 5 posterior margin and uropod exopod and endopod proportion.
“…To date, about 210 species are known from Brazil, 70 of which, belonging to the families Styloniscidae, Philosciidae, Scleropactidae, Dubioniscidae, Platyarthridae, Porcellionidae, Armadillidae, Pudeoniscidae, and Armadillidiidae, are recorded from Brazilian caves. Thirty-two taxa are considered to be troglobites (obligatory and restricted to caves), several are troglophiles (facultative cave species), and some species are possibly trogloxenes (Souza et al 2011;Campos-Filho et al 2014, 2015a, 2015b, 2016, 2017a, 2017b, 2018Bastos-Pereira et al 2017;Fernandes et al 2018Fernandes et al , 2019Cardoso et al 2020aCardoso et al , 2020bCardoso et al , 2021. The species placed into the last two categories are difficult to assign into a correct subterranean category due to the scarcity of distribution data outside caves.…”
Two new troglobitic species of Xangoniscus are described from two caves of Serra do Ramalho karst area, Bambuí geomorphological group, state of Bahia. Xangoniscus lapaensissp. nov. is described from Gruna Boca da Lapa cave, and X. loboisp. nov. from Gruna da Pingueira II cave. Both species are blind and depigmented and show amphibious habits, as observed for all species of Xangoniscus described until now. Xangoniscus lapaensissp. nov. occurs in travertine pools fed by water of the upper aquifer, and X. loboisp. nov. occurs in a small stream, an upper vadose tributary. Both species occur in fragile microhabitats. Ecological and behavioral data, conservation remarks, and IUCN conservation assessments are included to provide background data for conservation efforts in this unique karst area.
“…To date, more than 210 species are known from Brazil, of which 70 have been recorded from caves. Among them, 31 species are considered troglobites (obligatory and restricted cave-dwellers) and several are troglophiles (facultative cave-dwellers) or trogloxenes (epigean species with individuals using subterranean resources) ( Trajano 2012 ; Trajano and Carvalho 2017 ; Campos-Filho et al 2018 , 2019 , 2020 ; Cardoso et al 2020a , b , 2021 ). However, both troglobitic and troglophile species are not assigned with certainty to these categories due the lack of sampling outside caves.…”
Section: Introductionmentioning
confidence: 99%
“…), and Xangoniscus Campos-Filho, Araujo & Taiti, 2014 (8 spp.) (for all recorded species see Dalens 1987 ; Mulaik 1960 ; Schultz 1970 , 1995 ; Green 1971 ; Vandel 1973 , 1977 , 1981 ; Ferrara and Taiti 1979 ; Taiti et al 1992 ; Taiti and Howarth 1997 ; Schmalfuss and Erhard 1998 ; Andreev and Bozarova 2000 ; Andreev 2002 ; Green et al 2002 ; Taiti and Xue 2012 ; Campos-Filho et al 2014 ; Souza et al 2015 ; Bastos-Pereira et al, 2017 ; Fernandes et al 2018 ; Cardoso et al 2020a , b , 2021 ; Taiti and Montesanto 2020 ).…”
Section: Introductionmentioning
confidence: 99%
“…( Campos-Filho et al 2018 , 2019 ; Cardoso et al 2020a , b , 2021 ). It is worth mentioning that the Styloniscidae in Brazil hold the highest diversity of troglobitic isopods comprising 20 out of 31 species ( Campos-Filho et al 2018 , 2019 , 2020 ; Cardoso et al 2020a , b , 2021 ).…”
Two new species of Pectenoniscus from two caves in karst areas of the Brazilian semiarid region are described. Pectenoniscus pankaru Campos-Filho, Torres & Bichuette, sp. nov. from Gruna do Govi cave, Serra do Ramalho karst area, state of Bahia, and Pectenoniscus fervens Campos-Filho, Taiti & Bichuette, sp. nov. from Toca Coroa do Frade cave, Barra Bonita karst area, state of Piauí. In addition, specimens of Cylindroniscus flaviae from Gruta da Tapagem (= Caverna do Diabo), Açungui karst area were also recorded. An updated diagnosis of Pectenoniscus and a distribution map of the species examined herein are given.
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