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Fig. 10 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 10.—Collecting localities of Akodon species in Mato Grosso do Sul state, Brazil. Numbers match localities mentioned in Fig. 1.

Fig. 5 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 5.—Dorsal (A) and ventral (B) views of skin of Akodon philipmyersi (CNP LTU 719—up), A. kadiweu n. sp. (MZUSP 35766—middle), and A. montensis (UFMG 2695—below).

Fig. 1 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 1.—Range distribution of Akodon kadiweu n. sp., A. montensis, A. philipmyersi, Akodon sp., and A. toba. Localities: BRAZIL: Mato Grosso do Sul State: [1] Fazenda Califórnia, Parque Estadual da Serra da Bodoquena, Bodoquena (20°42′S, 56°51′W; 520 m a.s.l.); [2] Fazenda Maringá, 54 km W Dourados (22°15′S, 55°17′W; 427 m a.s.l.); [3] Maracaju (21°37′S, 55°10′W; 384 m a.s.l.); [4] BR-163 roadway, Eldorado (23°49′S, 54°20′W; 368 m a.s.l.); [5] São Marcus road, 7 km WSW of Urucum, Corumbá (19°1′S, 57°40′W; 110 m a.s.l.); [6] Fazenda Princesinha, Bonito (21°05′S, 57°29′W; 550 m a.s.l.); [7] Usina Vista Alegre, Maracaju (21°47′S, 55°34′W; 382 m a.s.l.); [8] limestone cave Nossa Senhora Aparecida, Bonito (21°5′S, 56°34′W; 520 m a.s.l.); ARGENTINA: Misiones: [9] Parada Leis, Department of Capital (27°37′S, 55°49′W; 109 m a.s.l.); [10] Ruta No. 105 km 10, Estancia Santa Inés, Department of Posadas (27°3′S, 55°52′W; 95 m a.s.l.). All localities had specimens examined on the present study, except for localities 6–9 from Cáceres et al. (2007), Hannibal and Godoi (2015), Boroni et al. (2020), Pardiñas et al. (2005), respectively.

Fig. 4 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 4.—Results of principal components analysis (PCA) carried out on log-transformed craniometric variables of adult specimens of Akodon kadiweu n. sp. (stars), A. montensis (dots), and A. philipmyersi (triangles).

Fig. 7 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 7.—Selected anatomical features of the skull and mandible of Akodon kadiweu n. sp., based on adult individuals MZUSP 35766, 35767, and 35994: (A) rostrum in dorsal view; (B) interorbital region in dorsal view; (C) braincase in dorsal view; (D) palatal region in ventral view; (E) rostrum in lateral view; (F) posterior portion of the skull in lateral view; (G) posterior portion of the skull in ventral view; (H) maxillaryfrontal area in dorsal view; (I) ventrolateral view of surface of braincase; (J) mandible in lateral view. Abbreviations are: ab, auditory bulla; als, alisphenoid strut; an, angular notch; ap, angular process; bmf, buccinator-masticatory foramen; cap, capsular projection; cp, condyloid process; crp, coronoid process; Exo, exoccipital; foa, foramen ovale accessorius; Fr, frontal; fs, frontal sinus; gp, gnathic process; if, incisive foramen;

Fig. 8 in A new species of Akodon Meyen, 1833 (Rodentia: Cricetidae: Sigmodontinae) endemic from the Brazilian Cerrado

Fig. 8.—Occlusal views of the upper and lower molar toothrows of Akodon kadiweu n. sp. (above) and A. philipmyersi (below). MZUSP 35767 (A and D), MZUSP 35766 (B and C), CNP 746 (E), and CNP 3019 (F, G, and H). Abbreviations: ams, anteromedian style; eld, ectolophid; esd, ectostylid; ml, mesoloph; mld, mesolophid.

Figure 10 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 10. Maxillary and mandibular tooth rows and cranial elements of Pennatomys nivalis gen. et sp. nov. A–C, maxillary tooth rows. A, FLMNH-EAP 05270001 (St. Eustatius). B, NHM M 82456 (Nevis) (reversed for comparison). C, FLMNH-EAP 05270002 (St. Eustatius). D–G, mandibular tooth rows. D, NHM M 82452 (holotype: Nevis). E, NHM M 82460 (Nevis). F, FLMNH-EAP 05270003 (St. Eustatius) (reversed for comparison). G, FLMNH-EAP 05270004 (St. Eustatius) (reversed for comparison). H–I, maxilla, FLMNH-EAP 05270002 (St. Eustatius). J, mandible, labial view, FLMNH-EAP 05270003 (St. Eustatius). K, paired frontals, FLMNH-EAP 05270005 (St. Eustatius). Scale bars: 1 mm.

Figure 11 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 11. Phylogenetic relationships of West Indian oryzomyines. Consensus cladogram of four most-parsimonious trees (tree length, L = 1245; consistency index, CI = 0.37; retention index, RI = 0.64) of combined molecular (Irbp) and morphological characters. Jackknife (> 50%) and Bremer (> 1) nodal support indices are shown above and below branches, respectively. Clades A, B, C, and D are the same as those recovered by Weksler (2006). Out-groups include Peromyscus maniculatus (Neotominae), Nyctomys sumichrasti (Tylomyinae), and Delomys sublineatus, Thomasomys baeops, and Wiedomys pyrrhorhinos (Sigmodontinae). Oryzomyine generic taxonomy follows that of Weksler et al. (2006).

Figure 8 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 8. Dorsal, lateral, and ventral views of Oligoryzomys victus skin (NHM 97.12.26.1). Scale bar: 2 cm.

Figure 5 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 5. Cranium and mandible of Megalomys. Left to right: Megalomys desmarestii (NHM 50.11.30.6) and Megalomys luciae (NHM 53.12.16.2). Scale bar: 1 cm.

Figure 7 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 7. Mandibular molars of West Indian rice rats. A, Megalomys desmarestii (NHM 55.12.24.201). B, Megalomys audreyae (NHM M7406a) (reversed for comparison). C, Oligoryzomys victus (NHM 97.12.26.1). Scale bars: 1 mm.

Figure 2 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 2. Martinique giant rice rat ('Le rat pilori, Mus pilorides'), possibly drawn from life, from Gervais (1854: 411).

Figure 6 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 6. Maxillary molars of West Indian rice rats. A, Megalomys desmarestii (NHM 55.12.24.201). B, Megalomys luciae (NHM 53.12.16.2). C, Oligoryzomys victus (NHM 97.12.26.1). Scale bar: 1 mm.

Figure 1 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 1. Map of the Windward and Leeward Islands of the Lesser Antilles, showing the distribution of extinct rice rats in Holocene archaeological sites (black stars) and Late Quaternary palaeontological sites (open circles), and islands from which rice rat species have been formally described. The modern-day sea level and 200 m isobath are both indicated, to show locations of shallow submarine banks that would have been exposed above water during Late Quaternary low sea-level stands, and which may have shared conspecific rice rat populations. Data from Pregill et al. (1994), Crock (2000), Newsom & Wing (2004), and LeFebvre (2007).

Figure 3 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Figure 3. Dorsal, lateral, and ventral views of Megalomys skins. Top, Megalomys desmarestii (NHM 55.12.24.201); bottom, Megalomys luciae (NHM 53.12.16.2). Scale bar: 5 cm.

Figure 4 in Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)

Figure 4. Dispersal–vicariance analysis with geographic regions optimized onto the topology of the Bayesian consensus tree. The hypothetical ancestral distributions obtained through this method are listed above the branches.

Figure 3 in Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)

Figure 3. Oligoryzomys phylogeny based on weighted parsimony analysis (WP) and the Bayesian Markov Chain Monte Carlo method (BMCMC). The phylogeny was obtained for the combined mitochondrial cytochrome b and NADH1 sequence data, whereas BMCMC represents a consensus tree of the N = 21 950 trees from the converged Markov chain. A posterior probability above 0.5 and bootstrap values over 50% are represented on each node. C1 represents calibration time 1 = 1.5 Mya; C2 represents calibration time 2 = 0.24 Mya (according to Pardiñas et al., 2002; see Material and methods). Diamonds on nodes represent that clade number for the clock calibration using BEAST.

Figure 2 in Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)

Figure 2. Nucleotide-based pairwise distances calculated independently for each gene (A, cytochrome b; B, NADH1), vs. pairwise distances calculated from the concatenation of two genes (see Material and methods for the calculation of distances).

Figure 1A in Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)

Figure 1A. Approximate geographic distribution of species of the genus Oligoryzomys, including undescribed taxa Oligoryzomys sp. 1 and Oligoryzomys sp. B (the distribution of Oligoryzomys sp. B is according to trapping records reported in Carleton and Musser, 1989).