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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 1.Hisonotus oliveirai, holotype, MZUSP 115061, female, 26.4 mm SL, from ribeirão Cambira, affluent rio Ivaí, upper rio Paraná basin, boundary between municipalities of Cambira and Apucarana, Paraná State, Brazil.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 2.Variation in hypertrophied series of anterolateral (A, C, E) and anterodorsal (B, D, F) odontodes across three species. A Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes B Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes C Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes D Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes E Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes F Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 3.Hisonotus oliveirai, paratype, NUP 7065, sex unknown, 24.5 mm SL A Ventral view of abdominal region showing intraspecific variation in abdominal dermal plate patterns B lateral trunk plates; cranial bones and dermal plates of the head in dorsal C and lateral D view. Scale bars: 1 mm.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 4.Ventral view of abdominal region of three species of Hisonotus, arrows indicate anal membrane in Hisonotus oliveirai (A, D) and Hisonotus paresi (B, E) contrasting with the lack of the anal membrane in Hisonotus chromodontus (C, F). A Hisonotus oliveirai, MZUSP 115061, holotype, female, 26.4 mm SL B Hisonotus paresi, MZUSP 115062, holotype, female, 26.2 mm SL C Hisonotus chromodontus, LBP 7964, female, 28.1 mm SL D Hisonotus oliveirai, NUP 3578, male, 27.1 mm SL E Hisonotus paresi, NUP 10928, male, 24.2 mm SL F Hisonotus chromodontus, LBP 12278, male, 26.7 mm SL.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 5.Map of the distribution of A Hisonotus oliveirai. Star = holotype locality, ribeirão Cambira. Diamonds = paratype localities B Hisonotus paresi. Star = holotype locality, riacho Águas Claras. Diamonds = paratype localities.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 6.Hisonotus paresi, holotype, MZUSP 115062, female, 26.2 mm SL, riacho Águas Claras, affluent rio Sepotuba, rio Paraguay basin, municipality of Santo Afonso, Mato Grosso State.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 2.Variation in hypertrophied series of anterolateral (A, C, E) and anterodorsal (B, D, F) odontodes across three species. A Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes B Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes C Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes D Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes E Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes F Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 7.Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL A Ventral view of abdominal plates B lateral trunk plates; cranial bones and dermal plates of the head in dorsal C and lateral D view. Black arrows (D) indicate an extra plate that is absent in the right side of the same specimen. Scale bars: 1 mm.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 4.Ventral view of abdominal region of three species of Hisonotus, arrows indicate anal membrane in Hisonotus oliveirai (A, D) and Hisonotus paresi (B, E) contrasting with the lack of the anal membrane in Hisonotus chromodontus (C, F). A Hisonotus oliveirai, MZUSP 115061, holotype, female, 26.4 mm SL B Hisonotus paresi, MZUSP 115062, holotype, female, 26.2 mm SL C Hisonotus chromodontus, LBP 7964, female, 28.1 mm SL D Hisonotus oliveirai, NUP 3578, male, 27.1 mm SL E Hisonotus paresi, NUP 10928, male, 24.2 mm SL F Hisonotus chromodontus, LBP 12278, male, 26.7 mm SL.
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Fábio F. Roxo, Cláudio H. Zawadzki, Waldo P. Troy
Zookeys
Figure 5.Map of the distribution of A Hisonotus oliveirai. Star = holotype locality, ribeirão Cambira. Diamonds = paratype localities B Hisonotus paresi. Star = holotype locality, riacho Águas Claras. Diamonds = paratype localities.