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FIGURE 1 in A review of Gongylonema spp. (Nematoda: Gongylonematidae) in North American rodents with description of a new species from the cotton rat, Sigmodon hispidus (Mammalia: Cricetidae)

FIGURE 1. Drawings of Gongylonema archboldi n. sp. A. Male, anterior end with detail of nerve ring, muscular esophagus and beginning of glandular esophagus and cuticular bosses, internal and surface view. B. Female, anterior end with detail of nerve ring, muscular esophagus and beginning of glandular esophagus and cuticular bosses, internal and surface view in two different figures. C. Male, caudal papillae asymmetrical, pedunculate and variable in number of pre-cloacal and post-cloacal papillae and sessile papillae near tail, ventral view. D. Male, spicules dissimilar and very unequal in length, right spicule boatshaped and left spicule thin, needle-tipped. E. Male, detail of gubernaculum with a cup-shaped base in which the right spicule rests.

FIGURE 2 in A review of Gongylonema spp. (Nematoda: Gongylonematidae) in North American rodents with description of a new species from the cotton rat, Sigmodon hispidus (Mammalia: Cricetidae)

FIGURE 2. Scanning electron micrographs of Gongylonema archboldi n. sp. A. Male, anterior end with prominent cuticular bosses, ventro-lateral view. B. Female, anterior end with more numerous prominent cuticular bosses than the male, ventral view. C. Female, detail of lateral alae, lateral view. D. Female, detail of prominent cuticular bosses.

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 4 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 4. Selected morphological traits of the Peruvian Akodon aerosus group members. (A: A. surdus, MUSM 36600; B: A. aerosus, MUSM 8981; C: A. torques, MUSM 9045; D: A. orophilus, MUSM 37019; E: A. mollis, MUSM 23645). First row: rostrum in dorsal view (note the posterior borders of nasals and the configuration of premaxilar and nasal sutures); second row: dorsal view of the antorbital bridge region (note the size of the lacrimals); third row: zygomatic plate in ventrolateral view (note the anterior border and the thickness of the malar process of maxillary); fourth row: mesopterygoid region (note the size of foramen oval and the shape of parapterygoid fossa); fifth row: ascending ramus of the mandible in labial view (note size of the capsular projection).

FIGURE 3 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 3. Standard Giemsa-stained karyotype of Akodon orophilus (2n = 26 FN = 40) from Huiquilla, Luya, Amazonas Department. Bar = 10 μm.

FIGURE 2 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 2. Dorsal, ventral and lateral views of cranium and mandible of Akodon orophilus s.s. (MUSM 37019). Bar = 10 mm.

FIGURE 1 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 1. Map showing the collection localities of Akodon orophilus (●) 1: Hierba Buena, 2: Leymebamba, 3: San Antonio, 4: Huiquilla, 5: Añazco pueblo, 6: Estación biológica Laurel, 7 Puca Tambo; and Akodon josemariarguedasi sp. nov. (․) 1: Palmapampa, 2: Galloganán, 3: Hatuncucho, 4: Ichocán. Inset: Outline map of Peru, indicating the boundaries of the area shown.

FIGURE 6 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 6. Some anatomical differences between Akodon josemariarguedasi sp. nov. (MUSM 22754; left) and A. orophilus (MUSM 37021; right): A: Posterior border of nasals [na] is blunt, its contour is serrated and the nasal [na] projects distinctly behind the premaxilla [pre] in Akodon josemariarguedasi. B: Zygomatic plate [zp] with anterior margin less slanting in Akodon josemariarguedasi. C: Condylar process [cp] is large and the lunar notch [ln] is deep in Akodon josemariarguedasi.