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FIGURE 5 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 5. Dorsal (upper), ventral (middle) and bottom (bottom) views of skins of (A) Scapteromys meridionalis (holotype, FURB 20253), (B) S. aquaticus (FCM 500) and (C) S. tumidus (FURB 20290). Bar = 10 mm.

FIGURE 7 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 7. (A) Dorsal (left), ventral (middle) and lateral (right) views of skull and labial view of mandible (bottom right) of (A) Scapteromys meridionalis holotype (FURB 20253). (B) S. aquaticus (FCM 489) and (C) S. tumidus (FURB 20289). Bar = 5 mm.

FIGURE 4 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 4. Convex hull for specimens scores of Scapteromys species on the principal components 1 and 2 (A) and 1 and 3 (B) extracted from the variance-covariance matrix of 21 cranial measurements.

FIGURE 3 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 3. Karyotype (conventional Giemsa standing) of Scapteromys sp. n. Above: 2n=34, FNa=40; below: 2n=36, FNa=40.

FIGURE 1 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 1. Distributional range of the three Scapteromys species (Green, Scapteromys sp. n.; light gray, S. aquaticus; dark gray, S. tumidus) and collecting sites of Scapteromys sp. n. (Brazil: 1—Rio Grande do Sul: São Francisco de Paula, 2—Santa Catarina: Campo Belo do Sul, 3—Santa Catarina: Água Doce, 4—Santa Catarina: Doutor Pedrinho, 5—Santa Catarina: Campo Alegre, 6—Santa Catarina: São Domingos, 7—Santa Catarina: Passos Maia, 8—Paraná: São José dos Pinhais, 9—Paraná: São Mateus do Sul, 10—Paraná: Candói). Red solid triangles represent localities with presence of 2n=34, and blue solid triangles indicate the presence of 2n=36. The circled triangle indicates the type locality.

FIGURE 2 in A new species of swamp rat of the genus Scapteromys Waterhouse, 1837 (Rodentia: Sigmodontinae) endemic to Araucaria angustifolia Forest in Southern Brazil

FIGURE 2.Phylogenetic relationships of Scapteromys. A)ML tree of Scapteromys sp. n. haplotypes and relationships within Scapteromys reconstructed using 801 base pairs of cyt-b sequences and rooted with Kunsia tomentosus. Numbers above branches represented bootstrap support (asterisk indicates values <50%) and below indicate genetic divergence based on K2P distances B) Median joining network of the 11 cyt-b haplotypes of Scapteromys sp. n. Areas are proportional to haplotype frequencies. Colors indicate major clades identified from the phylogenetic tree. Small black bars represent nucleotide differences between haplotypes. Small red circles represent missing haplotypes.

FIGURE 1 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 1. Dorsal, ventral and lateral views of the skull, and details of the maxillary molar row and incisive foramina of an adult Euryoryzomys russatus, illustrating the limits of the 15 craniodental measurements taken on the specimens of genus Aegialomys. Abbreviations are defined in text.

FIGURE 8 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 8. Size comparisons between selected skull measurements of the type specimens of the five nominal taxa of the species-group of the genus Aegialomys. White square represents M. galapagoensis; cross represents O. baroni; black triangle represents O. bauri; white triangle represents O. xanthaeolus; and black square represents O. xanthaeolus ica. The acronyms of measurements are provided in the Material and Methods section.

FIGURE 5 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 5. Dorsal, ventral and lateral views of the skull, and lateral view of the mandible of the specimen BMNH 85.4.1.47, holotype of Oryzomys xanthaeolus Thomas, 1894 (ONL not available; Thomas, 1894 recorded the length of the "front of interparietal to nasal tip": 28.3 mm).

FIGURE 7 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 7. Dorsal, ventral and lateral views of the skull, and lateral view of the mandible of the specimen FMNH 53157, holotype of Oryzomys xanthaeolus ica Osgood, 1944 (ONL: 32.88 mm).

FIGURE 6 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 6. Dorsal, ventral and lateral views of the skull, and lateral view of the mandible of the specimen AMNH 11820/ 10112, holotype of Oryzomys baroni Allen, 1897 (ONL: 35.81 mm).

FIGURE 4 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 4. Dorsal, ventral and lateral views of the skull, and lateral view of the mandible of the specimen MVZ 145379, neotype of Oryzomys bauri Allen, 1892 (ONL: 34.53 mm).

FIGURE 2 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 2. Dorsal, ventral and lateral views of the skull, and lateral view of the mandible of the specimen BMNH 55.12.24.175, holotype of Mus galapagoensis Waterhouse, 1839 (ONL: 32.7 mm).

FIGURE 3 in Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa

FIGURE 3. Map of the western portion of South America, showing the type-localities of the five nominal taxa of the speciesgroup of the genus Aegialomys. Inset: Map of South America showing the detailed region.

FIGURE 15. A in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 15. A. polopi, new species: Left upper (A) and left lower (B) molar rows in a young specimens (age class 2, CNP 1503). Scale = 1 mm.

FIGURE 8 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 8. Comparison between the toothwear classes of Myers (1989) (A) and Akodon aliquantulus left upper molar rows (left; Holotype, CML 6122 and rigth; paratype, CML 6121) (B). Scale bar= 1 mm.

FIGURE 6 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 6. Recorded localities of A. boliviensis (square) and A. sylvanus (circles) in Northwestern Argentina. Localities and geographic position in Appendix II.

FIGURE 1 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 1. Results of the phylogenetic analyses based on the first 801 bases of the cyt b gene of 71 sequences of Akodon. Topotype specimens included in the analyses are marked as follows: (a) A. alterus; (b) A. puer caenosus; (c) A. leucolimnaeus; (d) A. polopi new species (including the holotype); (e) A. spegazzinii; (f) A. sylvanus; and (g) A. tucumanensis. For those sequences retrieved from Genbank, accession numbers are provided next to species labels. For those sequences gathered by us, specimen collection numbers are provided next to species label; see Appendix I for locality data and Genbank accession numbers. A) Strict consensus tree of the 220 most parsimonious trees (length 1563, CI = 0.287, RI = 0.675). Numbers indicate parsimony jackknife values of the nodes at their right. Only jackknife values above 50 % are shown. B) Majority-rule consensus resulting from the Bayesian analysis. Numbers indicate posterior probability values of the nodes at their right.

FIGURE 3 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 3. Individual specimen scores based on log-transformed values of 11 cranial measurements, projected onto the first and second principal components extracted from analysis of young specimens (age class 2, n = 167) of A. spegazzinii as here understood. Some of the specimens labelled as Akodon spegazzinii and Akodon tucumanensis were collected at the type locality of each form. Meanwhile, those labelled as Akodon alterus and Akodon leucolimnaeus were all collected at the type locality of each form. Results of principal components analysis in table 7.

FIGURE 16 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity

FIGURE 16. Two different views, and habitat types, at the type locality of Akodon polopi, new species A) Steppe grasslands of Stipa sp. and Festuca hieronymii; B) Large stands of grasses of Paspalum quadrifarium and Poa stutckertii in rocky outcrops.