Results 121 to 130 of about 399 (159)
On the cardiac control in the South American lungfish, Lepidosiren paradoxa
Comparative Biochemistry and Physiology Part A: Physiology, 1989 Abstract 1. 1. The mechanisms behind cardiac control were investigated in the South American lungfish, Lepidosiren paradoxa , using fish with chronically implanted cannulae and electromagnetic flow probes. In addition, a preliminary study was made of the cardiovascular events associated with air breathing. 2. 2.
Axelsson, Michael +4 more
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Thermal Responses of the South American Lungfish, Lepidosiren paradoxa
Copeia, 1980Intestinal temperatures of nine South American lungfish, Lepidosiren paradoxa (Fitzinger), were monitored following exposures to sudden changes of +6.0 C in water temperature. Body weights were significantly (P < 0.001) correlated with thermal equilibration halftimes (T1/2) in a double logarithmic fashion for both heating and cooling.
Michael J. Pettit, Thomas L. Beitinger
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Notes on the Habits and Development of Lepidosiren paradoxa.
Journal of the Linnean Society of London, Zoology, 1930G S Carter, Carter G S, Beadle L C
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Nitrogen metabolism of the South American lungfish Lepidosiren paradoxa
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1972Abstract 1. 1. Lepidosiren paradoxa, kept in water, either fed or unfed, excretes up to 38 per cent its nitrogenous waste as urea. 2. 2. d -Arginine is hydrolyzed by liver homogenates but l -arginine and guanidinic compounds are not. 3. 3.
N J, Carlisky, A, Barrio
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Biology of the South American Lungfi sh, Lepidosiren paradoxa
, 2016 Lepidosiren paradoxa, locally known as pirambóia, belongs to the order Dipnoi, or true lungfishes. Th is group includes two other genera: a single Australian species of Neoceratodus (N.
Lopes, Nilva Pereira +8 more
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Respiratory Physiology and Neurobiology, 2008 The African (Protopterus sp.) and South American lungfish (Lepidosiren paradoxa) inhabit shallow waters, that seasonally dry out, which induces aestivation and cocoon formation in Protopterus. Differently, L.
Glauber S F da Silva +1 more
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The structure of the nephron in the south american lungfish, lepidosiren paradoxa
The Anatomical Record, 1935exaly +2 more sources
Retina of the South American lungfish, Lepidosiren paradoxa Fitzinger
Canadian Journal of Zoology, 1973The characteristic feature of the retina of Lepidosiren paradoxa is the hugeness (20–25 μm) and sparse-ness of the cells which compose it. The epithelial layer is well pigmented. The visual cells may be classified into rods and single cones which possess a large oil droplet and a smaller paraboloid.
M A, Ali, M, Anctil
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The Development of Lepidosiren paradoxa
Journal of Cell Science, 1902ABSTRACT In the following pages I give an account of the chief results obtained from my investigation of the development of Lepidosiren, in so far as they relate to the skin and certain organs associated with it. Some structures which ought logically to be described now have been deliberately omitted: such are the external gills, which I
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Morphology of the gill epithelium of the Lungfish, Lepidosiren paradoxa
Cell and Tissue Research, 1974The gills of Lepidosiren are very much reduced, consisting of a few lobe-like filaments. The gill epithelium differs from most other fish in being 4–7 layers thick. Three varieties of cell are described which occur in the inner epithelial layers. It is suggested that these represent stages in the synthesis of a granular secretory product.
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