Figure 1.
Pectenoniscus montalvaniensis n. sp. Male paratype: A, habitus, dorsal view; B, pleotelson and uropod, dorsal view; C, antennula; D, antenna; E, left mandible; F, right mandible; G, maxillula; H, maxilla; I, maxilliped. Scale bars: 0.2 mm.
Figure 2.
Pectenoniscus montalvaniensis n. sp. Male paratype: A, pereopod 1; B, pereopod 6; C, pereopod 7; D, genital papilla; E, pleopod 1; F, pleopod 2; G, pleopod 3 exopod; H, pleopod 4 exopod; I, pleopod 5 exopod. Scale bar: 0.2 mm.
Figure 3.
Pectenoniscus montalvaniensis n. sp. Male paratype: A, cephalon, frontal view; B, dorsal scaled setae; C, epimeron 2, dotted line indicating the lines of tubercles, dorsal view; D, pleonite 5, pleotelson and uropod, dorsal view; D, pereopod 7. Scale bars: A, D, E: 300µm; B: 40µm; C: 50µm.
Figure 4.
Pectenoniscus montalvaniensis n. sp. A, entrance of Abrigo da Ema cave, outside view; B, ancient rock engravings on the cave wall; C, specimen of Pectenoniscus montalvaniensis n. sp., approximately 2 mm.
Figure 5.
Pectenoniscus juveniliensis n. sp. Male paratype: A, cephalon, frontal view; B, pleotelson and uropod, dorsal view; C, antennula; D, antenna; E, left mandible; F, right mandible; G, maxillula; H, maxilla; I, maxilliped. Scale bars: 0.2 mm.
Figure 6.
Pectenoniscus juveniliensis n. sp. Male paratype: A, pereopod 1; B, pereopod 6; C, pereopod 7; D, genital papilla and pleopod 1; E, pleopod 2; F, pleopod 3 exopod; G, pleopod 4 exopod; H, pleopod 5 exopod. Scale bars: 0.2 mm.
Figure 7.
Pectenoniscus juveniliensis n. sp. A, cave map with collection sites; B, entrance of Gruta do Tabuleirinho, inside view; C, cave main hall; D, specimen of Pectenoniscus juveniliensis n. sp., approximately 3 mm.
Figure 8.
Pectenoniscus iuiuensis n. sp. Male paratype: A, habitus, dorsal view; B, cephalon, frontal view; C, pleonite 5, pleotelson and uropod, dorsal view; D, antennula; E, antenna; F, left mandible; G, right mandible; H, maxillula; I, maxilla; J, maxilliped. Scale bars: A: 0,5 mm; B-J: 0.2 mm.
Figure 9.
Pectenoniscus iuiuensis n. sp. Male paratype: A, pereopod 1; B, pereopod 6; C, pereopod 7; D, genital papilla and pleopod 1; E, pleopod 2; F, pleopod 3 exopod; G, pleopod 4 exopod; H, pleopod 5 exopod. Scale bars: 0.2 mm.
Figure 10.
Pectenoniscus iuiuensis n. sp. A, surroundings of Baixa da Fortuna cave; B, landscape around Serra de Iuiú; C, entrance of Baixa da Fortuna cave; D, specimen of Pectenoniscus iuiuensis n. sp., approximately 3 mm.
Figure 11.
Pectenoniscus carinhanhensis n. sp. Male paratype: A, habitus, dorsal view; B, cephalon, frontal view; C, pleonite 5, pleotelson and uropod, dorsal view; D, antennula; E, antenna; F, left mandible; G, right mandible; H, maxillula; I, maxilla; J, maxilliped. Scale bars: A: 0,5 mm; B-J: 0.2 mm.
Figure 12.
Pectenoniscus carinhanhensis n. sp. Male paratype: A, uropod; B, pereopod 1; C, pereopod 6; D, pereopod 7; E, genital papilla and pleopod 1; F, pleopod 2; G, pleopod 3 exopod; H, pleopod 4 exopod; I, pleopod 5 exopod. Scale bars: 0.2 mm.
Figure 13.
Pectenoniscus carinhanhensis n. sp. A, Águas Claras karst system (extension of caves in red, circles mark species occurrence; B, karst area of Serra do Ramalho; C, main conduit of Águas Claras cave; D, accumulated organic material in the conduit of Águas Claras cave; E, main conduit of Peixes II cave; F, specimen of Pectenoniscus carinhanhensis n. sp., approximately 3 mm.
Figure 14.
Pectenoniscus santanensis n. sp. Female paratype: A, habitus, dorsal view; B, cephalon, frontal view; C, pleonites 3-5, pleotelson and uropod, dorsal view; D, antennula; E, antenna; F, left mandible; G, right mandible; H, maxillula; I, maxilla; J, maxilliped. Scale bars: A: 0,5 mm; D: 0,1 mm; B, C, E-J: 0.2 mm.
Figure 15.
Pectenoniscus santanensis n. sp. Male holotype: A, pereopod 1; B, pereopod 6; C, pereopod 7; D, genital papilla and pleopod 1; E, pleopod 2; F, pleopod 3 exopod; G, pleopod 4 exopod; H, pleopod 5 exopod. Scale bars: 0.2 mm.
Figure 16.
Pectenoniscus santanensis n. sp. A, Gruta do Padre cave map, the dotted line represents the upper level, with collecting site; B, entrance of Gruta do Padre cave, inside the cave; C, main conduit of Gruta do Padre cave; D, specimen of Pectenoniscus santanensis n. sp., approximately 2 mm.
Figure 17.
Pectenoniscus morrensis n. sp. Male paratype: A, habitus, dorsal view; B, cephalon, frontal view; C, pleonite 5, pleotelson and uropod, dorsal view; D, antennula; E, antenna; F, left mandible; G, right mandible; H, maxillula; I, maxilla; J, maxilliped. Scale bars: A: 0,5 mm; B-J: 0.2 mm.
Figure 18.
Pectenoniscus morrensis n. sp. Male paratype: A, pereopod 1; B, pereopod 6; C, pereopod 7; D, genital papilla and pleopod 1; E, pleopod 2; F, pleopod 3 exopod; G, pleopod 4 exopod; H, pleopod 5 exopod. Scale bars: 0.2 mm.
Figure 19.
Pectenoniscus morrensis n. sp. Female paratype: A, cephalon, frontal view; B, epimeron 1, dorsal view; C, pleonite 7, pleon, pleotelson and uropods, dorsal view. Scale bar: A, C: 100µm; B: 40µm.
Figure 20.
Pectenoniscus morrensis n. sp. A, Gruta dos Brejões cave map, with collecting site; B, religious site in Gruta dos Brejões cave; C, entrance of Gruta dos Brejões cave, outside view; D, aerial photograph of the Permanent Preservation Area of Gruta dos Brejões; E, travertine dams, locally known as "wedding cake" or the "altar", one of the main speleothems of the cave; F, specimen of Pectenoniscus morrensis n. sp.
Figure 21.
Map of South America highlighting Brazil and the states of Bahia (BA), Minas Gerais (MG), and Santa Catarina (SC), where the species of Pectenoniscus are recorded. Brown and green colors indicate the elevation of the terrain, with brown for higher levels, green for lower levels; gray indicates karstic areas.
Figure 22.
Satellite images of localities: A, Abrigo da Ema (Montalvânia municipality); B, Gruta do Tabuleirinho (Juvenilia municipality); C, Baixa da Fortuna cave (Iuiu municipality); D, Gruna da Água Clara Cave, Gruna dos Índios cave and Gruna dos Peixes II, from top to bottom (Carinhanha municipality); E, Gruta do Padre cave (Santana municipality); F, Gruta dos Brejões (Morro do Chapéu municipality).