Results 41 to 50 of about 1,548 (303)
Revision of Newsteadia (Homoptera: Coccoidea) of the Nearctic and Neotropic Regions, with Descriptions of New Species [PDF]
, 2001 Six new species of Newsteadia are described from the Nearctic and Neotropic Regions. A key is presented for the identification of 10 species currently included in the genus from these regions. The number of species in the genus worldwide is 37.
Konczné Benedicty, Zsuzsanna +1 more
core +1 more source
The Anatomical Record, EarlyView.Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri +8 more
wiley +1 more source
IntropicaSe presenta el primer caso teratológico de Nesomyrmex asper, caracterizado por una anomalía asimétrica manifestada en la ausencia de la pata media izquierda y un crecimiento desproporcionado de la mesopleura.
Brandon Steve Arredondo Hoyos +1 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso +2 more
wiley +1 more source
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Speculations on the origin and evolution of the genus Leishmania [PDF]
Memorias do Instituto Oswaldo Cruz, 2000 Recently two hypotheses have been proposed for the evolution of Leishmania involving respectively a Neotropical or Paleartic origin for the species. Here an alternative proposal on the phylogeny of Leishmania based on the major divisions within the genus
Hooman Momen, Elisa Cupolillo
doaj +1 more source
European Journal of Taxonomy, 2022 Four new species of the spider genus Physocyclus Simon, 1893 are described from Mexico. Two species are described based on male and female adult specimens: Physocyclus mariachi sp. nov. and P. sikuapu sp. nov.
Garduño NOLASCO Samuel +1 more
doaj +1 more source
Adrenergic and Cholinergic Regulation of Cardiovascular Function in Embryonic Neotropic Cormorants (Phalacrocorax basilianus) [PDF]
, 2017 Investigations of cholinergic and adrenergic tone on heart rate (fH) and mean arterial pressure (Pm) during embryonic development have been conducted on numerous avian species. While these investigations have documented that adrenergic tone, a continuous
Cummins, James B.
core +1 more source
Segmental composition and nerve distribution of the brachial plexus in Galictis cuja
The Anatomical Record, EarlyView.Abstract Galictis cuja is a neotropical mustelid with terrestrial locomotor habits, yet the anatomy of its brachial plexus has remained undescribed. This study characterizes the origin, organization, and distribution of the brachial plexus nerves in 15 adult specimens (30 antimeres).
Natan da Cruz de Carvalho +6 more
wiley +1 more source
International Journal for Parasitology: Parasites and Wildlife, 2019 Molecular phylogenetic studies have revealed the growing diversity of bat trypanosomes. Here, 14 isolates from blood samples of the vampire bat Desmodus rotundus (Phyllostomidae) from Rio de Janeiro, Southeast Brazil, were cultivated, and morphologically
Juliana H.S. Barros +3 more
doaj +1 more source