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FIG. 4 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 4. Dorsal views of skulls. Left to right: Marmosops pakaraimae (ROM 115129, holotype), M. parvidens (AMNH 267359), and M. pinheiroi (AMNH 267345). All views about ×3.

FIG. 3 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 3. Ventral views of skins. Left to right: Marmosops pakaraimae (ROM 115129, holotype), M. parvidens (ROM 114144), M. pinheiroi (ROM 111558). Approximately life size.

FIG. 7 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 7. Forest vegetation at three Guyanese capture sites of Marmosops pakaraimae. Top, Mount Roraima, Third Camp (1000 m); bottom left, Mount Roraima, Second Camp (800 m); bottom right, Mount Ayanganna, First Plateau Camp (1100 m). Photos by Francis X. Faigal (Royal Ontario Museum).

FIG. 2 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 2. Dorsal views of skins. Left to right: Marmosops pakaraimae (ROM 115129, holotype), M. parvidens (ROM 114144), M. pinheiroi (ROM 111558). Approximately life size.

FIG. 8 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 8. Bayesian phylogeny of ingroup terminals (maximum-likelihood and parsimony analyses resulted in congruent topologies). Pie diagrams at internal nodes represent support from BI, ML, and MP analyses, with filled wedges corresponding to high support (posterior probabilities ≥ 0.95, bootstrap ≥ 0.75%). Each terminal is identified by country of origin and an alphanumeric specimen identifier (from tables 2 or 3). Numbers in parentheses refer to localities mapped in figure 1 and listed in the gazetteer (appendix).

FIG. 1 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 1. Collecting localities of examined specimens of Marmosops pakaraimae, M. parvidens, and M. pinheiroi. Numbers are keyed to entries in the gazetteer (appendix).

FIG. 5 in A New Species of Marmosops (Marsupialia: Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna

FIG. 5. Ventral views of skulls. Left to right: Marmosops pakaraimae (ROM 115129, holotype), M. parvidens (AMNH 267359), and M. pinheiroi (AMNH 267345). All views about ×3.

Fig. 4 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 4. Strict consensus of 18 equally mostparsimonious trees obtained by a heuristic analysis of the combined (nonmolecular + IRBP) dataset. Only ingroup (didelphine) terminal taxa are illustrated; ''caluromyine'' outgroups (Glironia venusta, Caluromysiops irrupta, Caluromys lanatus, and C. philan der) are not shown. Bremer support and bootstrap values are shown above and below each branch, respectively. See table 2 for other tree statistics. Labelled clades (C, F, G, H, I) are defined and discussed in the text.

Fig. 1 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 1. Dorsal and ventral views of the skin of the holotype of Chacodelphys formosa (Shamel), both approximately life size.

Fig. 3 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 3. Strict consensus of four equally mostparsimonious trees obtained by a heuristic analysis of nonmolecular characters. Only ingroup (didelphine) terminal taxa are illustrated; ''caluromyine'' outgroups (Glironia venusta, Caluromysiops irrupta, Caluromys lanatus, and C. philander) are not shown. Bremer support and bootstrap values are shown above and below each branch, respectively. See table 2 for other tree statistics.

Fig. 6 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 6. The savannawoodland border at Linda Vista near the Riacho Pilaga´, Provincia Formosa, Argentina, type locality of Chacodelphys formosa. Photographed by Alexander Wetmore in August 1920 (courtesy of the Smithsonian Institution Archives).

Fig. 2 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 2. Dorsal, ventral, and lateral views of the skull of Chacodelphys formosa (Shamel), all approximately four times life size.

Fig. 5 in On the Relationships of ''Marmosa'' formosa Shamel, 1930 (Marsupialia: Didelphidae), a Phylogenetic Puzzle from the Chaco of Northern Argentina

Fig. 5. Strict consensus of all MPTs recovered from heuristic analyses of 100 simulated datasets in which the missing molecular data for Chacodelphys formosa were replaced by random nucleotide sequences (see text). ''Caluromyine'' outgroups (Glironia venusta, Caluromysiops irrupta, Caluromys lanatus, and C. philander) are not shown. Labelled clades (F, I) are defined and discussed in the text.

FIG. 21 in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 21. Projections of specimen scores on the first two principal components (A) and on factors representing general size and size-invariant shape differences (B) from analyses of craniodental measurements of Philander canus (open triangles) and P. pebas (filled triangles). The coefficients of these axes are provided in table 13.

FIG. 22 in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 22. Collecting specimens for this study (Philander pallidus, trapped at Lamanai Outpost Lodge, Orange Walk, Belize; 2012).

FIG. 20. Lower molar differences between Philander pebas and P in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 20. Lower molar differences between Philander pebas and P. canus (see text for explanation). A, Labial view of right m1–m3 of P. pebas (MVZ 190343, holotype); B, labial view of right m1–m3 of P. canus (AMNH 210413). Abbreviations: pcid, postcingulid.

FIG. 18 in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 18. Dorsal view of the rostrum in Philander canus (A, AMNH 133096) and P. opossum (B, AMNH 96608), illustrating differences in nasal morphology.

FIG. 14 in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 14. Lateral view of P2–M1 of Philander canus (A, AMNH 210409) and P. quica (B, MVZ 182066). Whereas P3 has a complete labial cingulum that extends along the entire base of the tooth in P. canus, the labial cingulum of P3 is incomplete (extending only along the posterior part of that tooth) in P. quica.

FIG. 17 in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 17. Projections of specimen scores on the first two principal components (A) and on factors representing general size and size-invariant shape differences (B) from analyses of craniodental measurements of Philander canus (open triangles) and P. opossum (filled circles). The coefficients of these axes are provided in table 12.

FIG. 16. Relationships among 46 cytochrome-b in A Revision of Philander (Marsupialia: Didelphidae), Part 1: P. quica, P. canus, and a New Species from Amazonia

FIG. 16. Relationships among 46 cytochrome-b sequences of Philander canus and P. pebas. This subtree shows the full details of the cartooned clades labeled "canus" and "pebas" in figure 5.