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Fig. 8 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 8. Subcanopy habitat of Caluromys philander and other arboreal mammals (e.g., Micoureus demerarae, Potos flavus, Oecomys rutilus, O. auyantepui, Rhipidomys nitela) sampled by platformtrapping and by hunting at Paracou.

Fig. 6 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 6. Detail of a pitfall trapline installed beneath a sheetplastic drift fence at Paracou. Loose soil (excavated to sink the pitfalls) is heaped along a broad bottom fold of plastic to anchor the base of the drift fence; the remaining plastic is stapled to upright stakes for support. Twelve species of small marsupials and rodents were taken by this method at Paracou, in addition to amphibians, squamate reptiles, and arthropods.

Fig. 11 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 11. Dorsal and ventral cranial views of (A, B) Gracilinanus emiliae (composite of AMNH 203363, AMNH 267006, and ROM 35466) and of (C, D) Hyladelphys kalinowskii (AMNH 267338). Differences in rostral length, interorbital morphology, size of the orbits, braincase shape, and palatal fenestration are among the taxonomic differences illustrated by these views.

Fig. 15 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 15. Mammary morphology of adult female specimens of Hyladelphys kalinowskii (A, AMNH 267339) and Marmosops parvidens (B, AMNH 267344). Only two pairs of inguinalabdominal teats are present in H. kalinowskii, whose mammary formula can be written as 2–0–2 = 4. By contrast, this specimen of M. parvidens has four pairs of inguinalabdominal teats plus an unpaired median teat (4–1–4 = 9).

Fig. 10 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 10. Known collection localities for Gracilinanus emiliae based on specimens examined. 1, BRAZIL, Para´, Belém; 2, BRAZIL, Para´, Capim; 3, COLOMBIA, Meta, Los Micos; 4, FRENCH GUIANA, Paracou; 5, GUYANA, Upper TakutuUpper Essequibo, Dadanawa; 6, SURINAM, Marowijne, Langamankondre; 7, VENEZUELA, Monagas, 47 km SE Maturín.

Fig. 12 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 12. Lateral views of crania and mandibles of (A) Gracilinanus emiliae and (B) Hyladelphys kalinowskii based on the same specimens as in figure 11. Prominent taxonomic differences illustrated in these views include orbital size, development of the postorbital process of the jugal, braincase shape, presence of accessory cusps on upper and lower canines, and relative reduction of the third premolar.

Fig. 16 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 16. Details of upper incisor morphology of (A) Hyladelphys kalinowskii (AMNH 267338) and (B) Marmosops pinheiroi (AMNH 267341). In all examined specimens of Hyladelphys, the crowns of I2–5 are narrow, asymmetrical, and widely spaced, with no consistent size increase from front to back. By contrast, the crowns of I2– 5 in Marmosops are broad, symmetrical, overlapping or closely approximated rhomboids of posteriorly increasing size.

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Data from: The arboreal ants of a Neotropical rainforest show high species density and comprise one third of the ant fauna

<p>In tropical rainforests, the ant community can be divided into ground and arboreal faunas. Here we report a thorough sampling of the arboreal ant fauna of La Selva Biological Station, a Neotropical rainforest site. Forty-five canopy fogging samples were centered around large trees. Individual samples harbored an average of 35 ant species, with up to 55 species in a single sample. The fogging samples yielded 163 observed species total, out of a statistically estimated 199 species. We found no relationship between within-sample ant richness and focal tree species, nor were the ant faunas of nearby trees more similar to each other than the faunas of widely spaced trees. Species density was high and beta diversity was low: a single column of vegetation typically harbors at least a fifth of the entire arboreal ant fauna. Considering the entire fauna, based on 23,326 species occurrence records using a wide variety of collecting methods, 182 of 539 observed species (196 of 605, estimated statistically) were entirely arboreal. The arboreal ant fauna is thus about a third of the total La Selva ant fauna, a robust result because inventory completeness was similar for ground and arboreal ants. The taxonomic history of discovery of the species that make up the La Selva fauna reveals no disproportionately large pool of undiscovered ant species in the canopy. The "last biotic frontier" for tropical ants has been the rotten wood, leaf litter, and soil of the forest floor.</p>

Fig. 74 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 74. Dorsal and ventral views of the skin of AMNH 266566, neotype of Cavia acouchy Erxleben,

Fig. 33 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 33. Limits of 12 rodent craniodental measurements defined in the text.

Fig. 30 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 30. Dorsal, ventral, and lateral cranial views of FMNH 21720, neotype of Viverra touan Shaw

Fig. 39 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 39. Left maxillary toothrows (A, B) and right mandibular toothrows (C, D) of Neacomys dubosti

Fig. 65 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 65. Dorsal and ventral views of the skin of NMW 42010, lectotype of Coendou melanurus

Fig. 69 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 69. Left lateral cranial views of Coendou melanurus (top, AMNH 94174) and C. insidiosus

Fig. 64 in The Mammals Of Paracou, French Guiana: A Neotropical Lowland Rainforest Fauna Part 2. Nonvolant Species

Fig. 64. Dorsal, ventral, and lateral cranial views of NMW 42010, lectotype of Coendou melanurus

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Data from: The arboreal ants of a Neotropical rainforest show high species density and comprise one third of the ant fauna

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FIGURE 14 in Partial revision of the genus Robinsonia Grote 1866: description of five new species for the Neotropical fauna (Lepidoptera, Erebidae, Arctiinae, Phaegopterina)

FIGURE 14. Holotype of Robinsonia inexpectata Laguerrre sp. nov., dorsal view on the left and ventral view on the right, labels are not to scale. Scale = 10 mm.

FIGURE 18 in Partial revision of the genus Robinsonia Grote 1866: description of five new species for the Neotropical fauna (Lepidoptera, Erebidae, Arctiinae, Phaegopterina)

FIGURE 18. Upper side on the left and ventral view on the right, A and B, male of R. marginata—C and D, female of R. marginata—E and F male of R. flavicorpus. A–D, from French Guiana; E–F, from Venezuela. Scale = 10 mm.

FIGURE 11 in Partial revision of the genus Robinsonia Grote 1866: description of five new species for the Neotropical fauna (Lepidoptera, Erebidae, Arctiinae, Phaegopterina)

FIGURE 11. Robinsonia drechseli Laguerrre sp. nov., A–B: male holotype, A dorsal view, B ventral view; C–D: female paratype, C dorsal view, D ventral view. Labels not to scale. Scale = 10 mm.

FIGURE 10. A–C in Partial revision of the genus Robinsonia Grote 1866: description of five new species for the Neotropical fauna (Lepidoptera, Erebidae, Arctiinae, Phaegopterina)

FIGURE 10. A–C: female genitalia of Robinsonia maranhensis Laguerre sp. nov., A ventral view, B dorsal view, C detail of the antrum, ductus bursae and papillae anales.