Results 181 to 190 of about 4,798 (199)

Tooth onoteny in Didelphis virginiana (Marsupialia : Didelphidae)

Australian Journal of Zoology, 1978
The ontogenetic development of the teeth was studied in a series of seven specimens of Didelphis virginiana whose crown-rump length varied from 11 to 49 mm. Though all developing teeth showed undifferentiated lingual downgrowths of dental lamina, there was no evidence of any non-functional teeth. No more than five upper incisors were present at any one
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The chromosomes ofMarmosa fuscata thomas, from northern Venezuela (Marsupialia, Didelphidae)

Experientia, 1970
Los cromosomas deMarmosa fuscata (subgeneroMarmosops), estudiados por cultivo de tejidos en base a 4 individuos de la Cordillera de la Costa en el norte de Venezuela, resultaron diferir de los deMarmosa robinsoni solo en el quinto y sexto par de autosomas, metacentricos en la primera y subtelocentricos en la segunda especie.
O A, Reig, C, Sonnenschein
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Supernumerary molars in neotropical Opossums (DideLphimorphia, Didelphidae)

2001
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Astúa, Diego., Lemos, B, Cerqueira, Rui
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Diversité systématique des Didelphidae (Marsupialia) européens tertiaires

Geobios, 1979
Resume De l'Eocene inferieur au Miocene moyen, 26especes de Didelphidae sont reconnues en Europe. Les diagnoses de 15 especes nouvelles sont proposees (Peradectes louisi, russelli et mutigniensis; Amphiperatherium brabantense, bourdellense, gothei, maximum, bastbergense et fontense; Peratherium matronense, sudrei, bretouense, lavergnense ...
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A new species of Philander Brisson, 1762 (Didelphimorphia, Didelphidae)

Mammalian Biology, 2008
A new species of Philander, known from two localities in Bolivia and one in Peru, is described. The new species is externally similar to sympatric populations of P. opossum, but both have several differences, such as ventral pelage color, nasal morphology, condition of the zygomatic arches, and rostral tympanic process of the petrosal.
David A. Flores, Rubén Marcos Barquez, María Mónica Díaz   +2 more
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American Opossums Order Didelphimorphia, Family Didelphidae

2009
Abstract All marsupials were formerly considered to belong to the order Marsupialia; however, this large group has recently been split into 7 orders. New World opossums are repre- sented by 3 orders and Australian marsupials by 4 orders. The Didelphimorphia contains a single family, which includes all Central American opossums.
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Development of craniofacial musculature inMonodelphis domestica(marsupialia, didelphidae)

Journal of Morphology, 1994
AbstractDevelopment of craniofacial muscles ofMonodelphis domestica(Marsupialia, Didelphidae) is described. In a period of 4–6 days all craniofacial muscles inM. domesticaprogress from myoblast condensation, to striated myofibers that are aligned in the direction of adult muscles and possess multiple, lateral nuclei.
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Development of epiphyseal structure and function inDidelphis virginiana (Marsupiala, Didelphidae)

Journal of Morphology, 1999
This study addressed the question of how the epiphyses of growing mammals change their external shape and internal architecture during postnatal development. Ontogenetic transformations in the external form and internal structure of the fore- and hindlimb epiphyses were examined in a mixed cross-sectional sample of Didelphis virginiana using two ...
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Use of zygodactylous grasp by Caluromys philander (Didelphimorphia: Didelphidae)

Mammalian Biology, 2010
The present report aims to quantify the use of zygodactylous (opposability of digits II to III) grasping in relation to positional modes and support size and orientation, in the highly arboreal, walking/climbing woolly opossum, Caluromys philander. For this purpose, four captive adult C.
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The family Didelphidae as a host of zoonotic pathogens

Therya Notes
The family Didelphidae has often been associated with transmission cycles of zoonotic diseases, such as Leishmaniasis and Chagas disease.  In this work, we review the scientific literature published from 1994 to 2024 on studies of the family Didelphidae and its pathogens.
Víctor Sánchez-Cordero, Ángel Rodríguez-Moreno, José Juan Flores-Martínez, Gabriel Gutiérrez-Granados   +3 more
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