A5032999580- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Animal and Plant Science Education
- Lepidoptera: Biology and Taxonomy
- Plant and soil sciences
- Scarabaeidae Beetle Taxonomy and Biogeography
- Turtle Biology and Conservation
- Plant and animal studies
- Wildlife-Road Interactions and Conservation
- Genetic diversity and population structure
- Ichthyology and Marine Biology
- Environmental and Biological Research in Conflict Zones
- Study of Mite Species
- Dermatological diseases and infestations
- Fish biology, ecology, and behavior
- Animal Behavior and Reproduction
- Aquatic Ecosystems and Phytoplankton Dynamics
- Insect Utilization and Effects
- Skin Protection and Aging
- Mollusks and Parasites Studies
- Water Quality and Pollution Assessment
- Ecology and biodiversity studies
- Bat Biology and Ecology Studies
- Ecology and Vegetation Dynamics Studies
- Physiological and biochemical adaptations
National Institute of Anthropology and History
2005-2008
National Museum of Archaeology
2007
University of Richmond
2002
Scinax is the most species-rich genus of Neotropical treefrogs, with 129 currently recognized species divided between two major clades, S. catharinae and ruber clades. The clade includes 52 placed in perpusillus groups, whereas composed 77 species, 13 which are included groups: rostratus uruguayus all 64 remaining being unassigned to any group. Although some studies have addressed phylogenetic relationships genus, its remain poorly understood. To test monophyly within among them, we...
The Leptodactylus latrans species group currently comprises eight medium- to large-sized frog with a convoluted taxonomic history, particularly related the specific limits of L. complex, and pair chaquensis–Leptodactylus macrosternum. Their homogeneous external morphology continental geographic distribution in South America have posed severe limitations comprehensive review, such that consensus remain uncertain. This is further worsened by presence chromatic polymorphism among coexisting can...
The usage of the name Rana ocellata Linnaeus, 1758, is plagued by misidentifications and misinterpretations. After an exhaustive bibliographic review, we conclude that Linnaeus 1758 refers to Osteopilus brunneus (Gosse, 1851) from Jamaica, while taxon currently known as Leptodactylus ocellatus corresponds latrans Steffen, 1815. Herein, designate provide descriptions neotypes (Steffen, 1815), revalidated, new combination, (Linnaeus, 1758), a senior synonym 1851).
A new species of bufonid toad the genus Melanophryniscus is described from a mountaintop that part Serra do Mar in northeastern State Paraná, Brazil. alipioi sp. nov. distinguished other known by its uniformly dark brown dorsal color and unique breeding site. The reproduces bromeliads, reproductive mode previously unknown for this genus. This might be susceptible to current habitat lost.
Zachaenus roseus Cope, 1890, has puzzled systematists working in southern South America. A single individual, the holotype, ever been collected and this specimen is extremely poor preservation condition. Herein, precise location of type locality Z. determined based on a historical review literature. Furthermore, following careful comparison with all species that inhabit austral forest, could potentially correspond to roseus, we conclude taxon placed synonymy Eupsophus calcaratus (Günther, 1881).
series appeared in 1968.SHIS number 1 was a list of herpetological publications arising from within or through the Smithsonian Institution and its collections entity, United States National Museum (USNM).The latter exists now as little more than an occasional title for registration activities Natural History.No. prepared printed by J. A. Peters, then
Review of the literature and recently available field notes from collector type allows a reconsideration identity Linnaean name Rana typhonia. We provide evidence to demonstrate that species is neither bufonid nor an Asiatic ranid, but Neotropical hylid. Subsequently, we consider typhonia as older synonym venulosa Laurenti, 1768, redescribing its holotype under new combination, Trachycephalus typhonius (Linnaeus, 1758).
Rana margaritifera was described by Laurenti in 1768 and currently is associated to the genus Rhinella, under com-bination Rhinella margaritifera. Currently, R. species group consists of 16 recognized species. Further-more, many additional have been suggested exist this which highlights ambiguity surrounding identity impend further description group. After an exhaustive biblio-graphic review, we concluded that recent designation a lectotype for invalid according with Art. 73, ICZN, 1999....
The native species of amphibians and reptiles Uruguay were categorized according to the IUCN Red List criteria. Out 47 amphibian species, seven are listed as Critically Endangered (CR), five (EN), one Vulnerable (VU), three Near Threatened (NT), two Data Deficient (DD); remaining considered be Least Concern (LC). Among 64 evaluated, is (NT) rest use these results an additional criterion in definition protected areas will contribute towards conservation aforementioned threatened their...
The genus Odontophrynus consists of 11 species medium-sized frogs distributed across south and east South America. This study examines describes the chondrocrania oral cavities O. americanus, maisuma, carvalhoi, cultripes, review current knowledge about larval external morphology genus. Twenty-one tadpoles were cleared double-stained for chondrocranium description five dissected analysis in a scanning electron microscope. presence tectum parientale may be considered here as putative...
The external morphology and oral disc of the tadpole Leptodactylus notoaktites Heyer, 1978, are described illustrated for Gosner's stage 33. internal anatomy was analyzed under SEM at 36 whereas chondrocranial is reported Gosner' 38. this compared with those available other species L. mystaceus complex. overall characteristics do not depart from known genus they particularly agree fuscus group. labial tooth row formula 2(2)/3.
RESUMENSe analizó la histología tegumentaria de región cefálica en seis especies del género Melanophryniscus, pertenecientes a los grupos stelzneri (4) y tumifrons (2), con el objetivo esclarecer estructura tumefacción frontal su posible función.Las características generales grupo stelzneri, coincidieron las descripciones tegumentarias existentes para género.Sin embargo, dos muestran cambios histológicos correlacionados frontal.Esta presenta una
The larvae of Leptodactylus gracilis (D'Orbigny y Bibron, 1840) and L. mystacinus Bumeister, 1861 are re-described compared with previous descriptions noting intraspecific variation in oral disc characteristics (arrangement papillae rows cornified teeth). external morphological analysis the fuscus group suggest that lack comparable among species, as well analyses their variation, limits use larval for diagnostic purposes.