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| Kobelkowsky,Abraham. |
| Mediante la comparación del neurocráneo de la "raya mariposa" Gymnura micrura con especies representantes de cinco familias de Batoidea, se reconoce que corresponde al patrón anatómico del orden Myliobatiformes, por la ausencia del rostro, la presencia de una sola fontanela y el mayor desarrollo de los procesos postorbitarios. La especie en estudio difiere de los Urotrygonidae y Dasyatidae por tener los procesos postorbitarios subdivididos. La organización del encéfalo de G. micrura corresponde al patrón anatómico de los Batoidea, sin embargo, a diferencia de los Rhinobatidae, Urotrygonidae y Dasyatidae, el cerebelo es simétrico; en contraste con los Myliobatidae los hemisferios cerebrales son reducidos; y la principal diferencia con relación a los... |
| Tipo: Journal article |
Palavras-chave: Elasmobranchii; Cráneo; Cerebro; Nervios craneales; Órganos sensoriales. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200042 |
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| Kobelkowsky,Abraham. |
| The morphological diversity of the ovaries from a total of 90 species of teleosts in the Mexican fauna was analyzed. Ovaries were classified according to the following characters: their number, symmetry, fusion grade, trajectory, cross section, and topographical location. The fusion of both left and right ovaries was the character showing most diversity, mainly in the Cyprinodontiformes and its tendency to the viviparity. However, the most notably character was the extravisceral development of the ovaries in the Pleuronectiformes, implying the forward orientation of the gonoduct and the forward position of the female genital opening. The urogenital system of a typical perciform, Bairdiella chrysoura is proposed as a morphological pattern of the Teleostei. |
| Tipo: Journal article |
Palavras-chave: Osteichthyes; Genital system; Gonads; Anatomy. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400017 |
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| Kobelkowsky,Abraham. |
| In order to describe the morphology of the kidney and implement its dissection technique, specimens of the grey snapper Lutjanus griseus were analyzed. The morphology of the kidney fits with the structural pattern of the higher teleosts, consisting of a large fusion of the right kidney with the left, with the exception of the anterior renal lobes. Both anterior renal lobes are separated by the retractores dorsales muscles and by the anchorage of the gas bladder to the vertebrae. Some cranial and spinal nerves, as well as ribs, blood vessels, the Baudelot's ligament, the sinus venosus of the heart, the precaudal vertebrae, and the gas bladder mark the surface of the kidney. The archinephric ducts are connected with the urinary bladder, from which the common... |
| Tipo: Journal article |
Palavras-chave: Mesonephros; Fishes; Anatomy; Renal morphology; Dissection technique. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200032 |
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