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FIGURE 4 in Taxonomic status of Akodon oenos (Rodentia, Sigmodontinae), an obscure species from West Central Argentina

FIGURE 4. Details of the alisphenoid region in skulls of Akodon oenos and A. spegazzinii showing the posterior ascending process of the alisphenoid bone between the squamosal and the bulla. Specimens: a. CNP 1897 (A. oenos, Llancanelo Natural Reserve, Mendoza), b. CNP 2352 (A. oenos, topotype; La Pega, Mendoza), c. CNP 1493 (A. spegazzinii, Las Chacritas, Catamarca), and d. CNP 1491 (A. spegazzinii, Carapunco, Tucumán). Abbreviations: al = alisphenoid, ap = ascending process, as = alisphenoid strut, bmt = buccinator-masticatory through, bu = auditory bulla, fo = foramen ovale, pg = postglenoid foramen, sag = squamosal-alisphenoid groove, sq = squamosal, tt = tegmen tympani, za = zygomatic arch.

FIGURE 6 in Taxonomic status of Akodon oenos (Rodentia, Sigmodontinae), an obscure species from West Central Argentina

FIGURE 6. Majority-rule consensus resulting from the Bayesian analysis based on the first 801 bases of the cyt b gene of 68 sequences of Akodon. Genbank accession numbers are provided next to species labels. For those sequences generated by Jayat et al. (2010) specimen collection numbers are also given, due to in that paper we omitted detailing accession numbers per specimen. Numbers indicate posterior probability values of the nodes at their right.

FIGURE 3. Anatomical comparisons among Akodon oenos, A in Taxonomic status of Akodon oenos (Rodentia, Sigmodontinae), an obscure species from West Central Argentina

FIGURE 3. Anatomical comparisons among Akodon oenos, A. spegazzinii, and A. neocenus involving the interorbital region (left column) and the rostrum in lateral view (right column): a. CNP 2352 (A. oenos, topotype; La Pega, Mendoza); b. CNP 1491 (A. spegazzinii, Carapunco, Tucumán); c. and d. CNP 2349 and CNP 2346, respectively (A. neocenus, topotypes; Neuquén, Neuquén). The arrows highlight the constriction anterior point and the wide interorbit with divergent frontals (fs) that characterize A. neocenus; a short upper free border (fu) and a more orthodont tendency (note the inclination of the black line with respect to the molar plane) contribute to separate A. oenos and A. spegazzinii from A. neocenus and the remainder members of the Akodon varius group.

Figure 7 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 7. Phylogenetic analysis of oryzomyine relationships: Consensus cladogram of two most parsimonious trees (5513 steps, consistency index = 0.23, retention index = 0.41) of combined molecular (Irbp + cytochrome-b) and morphological characters. Jackknife (> 50%) nodal support indices are shown below branches. Clades A, B, C, and D are the same as those recovered by Weksler (2006). Outgroups include Peromyscus maniculatus (Neotominae); Nyctomys sumichrasti (Tylomyinae); and Delomys sublineatus, Thomasomys baeops, and Wiedomys pyrrhorhinos (Sigmodontinae). Oryzomyine generic taxonomy follows Weksler et al. (2006).

Figure 5 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 5. Detail of the ventral view of the cranium of Drymoreomys albimaculatus gen. et sp. nov., showing the palate, the anterior margin of mesopterygoid fossa, and the sphenopalatine vacuities of the same specimens depicted in previous figure [MZUSP BO 42, length of palatal bridge (LPB): 5.03 mm; MZUSP BO 41, LPB: 5.34 mm].

Figure 4 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 4. Detail of the ventral view of the cranium of Drymoreomys albimaculatus gen. et sp. nov., showing the incisive foramina with lateral margins abruptly constricted anteriorly near the premaxillary-maxillary suture [left specimen, MZUSP BO 42, from Estação Biológica de Boracéia, São Paulo; length of incisive foramen (LIF): 5.71 mm] and with abruptly constricted lateral margins, near the posterior border (right specimen, MZUSP BO 41, also from E. B. Boracéia; LIF: 5.74 mm).

Figure 3 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 3. Cranium (dorsal, ventral, and lateral views) and mandible (lateral view) of the holotype of Drymoreomys albimaculatus gen. et sp. nov. MZUSP 34716, from Parque Estadual Intervales, São Paulo (condylo-incisive length 30.67 mm).

Figure 2 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 2. Ventral view of the dried skin of the holotype of Drymoreomys albimaculatus gen. et sp. nov. MZUSP 34716 from Parque Estadual Intervales, São Paulo, showing the gular and pectoral patch of entirely white hairs.

Figure 8 in A new genus and species of rodent from the Brazilian Atlantic Forest (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with comments on oryzomyine biogeography

Figure 8. Maximum likelihood tree of combined molecular [Irbp + cytochrome b (cyt-b)] datasets (likelihood = -22 318.75). Bootstrap (> 50%) nodal support indices are shown below branches. Estimated parameters for the model are as follows: Irbp – substitution rate matrix: 1.13 (AC), 4.94 (AG), 0.6 (AT), 0.42 (CG), 6.15 (CT), and 1 (GT); a (shape parameter of gamma distribution) = 0.377; cyt-b – substitution rate matrix: 12.82 (AC), 28.51 (AG), 12.88 (AT), 1.13 (CG), 86.29 (CT), and 1 (GT); a = 0.275. Clades B, C, and D are the same as those recovered by Weksler (2006). See

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FIGURE 1 in A new oryzomyine (Rodentia: Sigmodontinae) from the Quaternary of Curaçao (West Indies)

FIGURE 1. Type series of Dushimys larsi. All teeth are figured as if they were from the left. 1, M1 (RGM 592814); 2, M2 (RGM 592817); 3, M3 (RGM 592819, reversed); 4, m1 (RGM 592822); 5, m2 (RGM 592825, reversed); 6, m3 (RGM 592830, reversed; holotype).

FIGURE 9 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 9. Karyotype of D. altimontanus from Campos do Itatiaia, Itatiaia, RJ, 2450m (MN 69712, male) in conventional staining

FIGURE 4 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 4. (a) Mandibles of (top to bottom) Delomys sp. nov. (MN69712, Campos do Itatiaia, Itatiaia, RJ, 2450m), D. dorsalis (MN78927, Maromba, Itatiaia, RJ, 1170m), the holotype of D. dorsalis collinus (BMNH14.2.23.12, Itatiaia, RJ, 1470m) and D. sublineatus (MN78674, Caucaia do Alto, SP, 930m). (b) Variation in the contact of the frontoparietal and frontosquamosal sutures of (top to bottom) Delomys sp. nov., D. dorsalis, the holotype of D. dorsalis collinus and D. sublineatus. Arrow points to the anterodorsal limit of squamosal. (c) Lateral view of skulls of (top to bottom) Delomys sp. nov., D. dorsalis, D. dorsalis collinus and D. sublineatus (MVZ183076, Estação Ecológica de Boracéia, SP, 935m). Abbreviations: ang—angular process, cor—coronoid process, fro—frontal, par—parietal, sig—sigmoid notch, squ—squamosal.

FIGURE 12 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 12. (a) Disjunct distribution of D. altimontanus and (b) statistical parsimony network depicting relationships between cytochrome b haplotypes from Caparaó (locality 6) and Itatiaia (localities 18, 21) mountain ranges. Circle sizes are proportional to haplotype frequencies and each line represents one mutational step. (c) Vector correlations among characters and CVA axes and (d) bivariate plot of most discriminant craniometric characters between Itatiaia and Caparaó populations.

FIGURE 8 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 8. Craniometric discrimination among species of Delomys: (a) CVA analysis among samples with karyotypic and/or molecular data, and (b) respective vector correlations among characters and CVA axes. (c) CVA analysis with sympatric samples of Delomys sp. nov. and D. dorsalis from Itatiaia Mt. highlighted, showing the allocation of the D. d. collinus holotype. (d) Bivariate plot of most discriminant craniometric characters to discriminate between Delomys sp. nov. and D. dorsalis with the measurements of D. d. collinus holotype included.

FIGURE 14 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 14. Craniometric discrimination among intraspecific clades of D. dorsalis: (a) CVA analysis among the three clades and (b) respective vector correlations among characters and CVA axes. Bivariate plot of the two most discriminant craniometric characters (c) between the Mantiqueira and Serra do Mar clades, and (d) between the Mantiqueira and Southern clades, also depicting the allocation of taxonomically important samples.

FIGURE 7 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 7. (a–c) Upper and (d─f) lower molar rows of D. altimontanus (MN69712, Campos do Itatiaia, Itatiaia, RJ, 2450m), D. dorsalis (MN60572, Brejo da Lapa, Itamonte, MG, 1843m) and the holotype of D. dorsalis collinus (BMNH14.2.23.12, Itatiaia, RJ, 1470m). Abbreviations: amf—anteromedian flexus, la—anterolabial conule, li—anterolingual conule, pf— protoflexus, pfd—protoflexid, pld—protolophid.

FIGURE 5 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 5. Dorsal and ventral views of skulls of (a) Delomys sp. nov. (MN69712, Campos do Itatiaia, Itatiaia, RJ, 2450m), (b) D. dorsalis (MN78927, Maromba, Itatiaia, RJ, 1170m), (c) D. dorsalis collinus (BMNH14.2.23.12, holotype, Itatiaia, RJ, 1470m) and D. sublineatus (MVZ183076, Estação Ecológica de Boracéia, SP, 935m). Abbreviations: mif—maxillary margin of incisive foramen, mpf—mesopterygoid fossa.

FIGURE 2 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 2. Collecting localities for specimens of Delomys sublineatus examined in this study. Acronyms refer to the Brazilian states of (ES) Espírito Santo, (MG) Minas Gerais, (RJ) Rio de Janeiro, (SP) São Paulo, (PR) Paraná, and (SC) Santa Catarina. All localities are listed in the Appendix.

FIGURE 11 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 11. Dorsal, ventral and lateral views of the skull of a specimen of D. altimontanus from Campos do Itatiaia, Itatiaia, RJ, 2450m (MN 69712, male).

FIGURE 10 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species

FIGURE 10. Dorsal, lateral and ventral views of the skin of the holotype of D. altimontanus from Campos do Itatiaia, Itatiaia, RJ, 2450m (MN 69746, male).