Literaturdatenbank
Literaturdatenbank |
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Acuña-Mesén, R. A. (1989). Ultraestructura de la cáscara del huevo de la tortuga pseudemys scripta (testudines: emydidae). ultrastructure of eggshell in the turtle pseudemys scripta (testudines: emydidae). Revista de Biología Tropical, 37(2), 193–200.
Added by: Admin (13 Sep 2009 10:11:04 UTC) |
| Resource type: Journal Article BibTeX citation key: AcuaMesn1989 View all bibliographic details  |
Categories: General Keywords: Emydidae, Schildkröten = turtles + tortoises, Trachemys, Trachemys scripta, Zeitigung = incubation Creators: Acuña-Mesén Collection: Revista de Biología Tropical |
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| Abstract |
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The egg shells of Pseudemys scripta have two layers, one external of calcium salts and the internal of a proteic nature. The multishaped structures ("units") of the calcareous layer am bordered by groves that allow some expanssion when the egg becomes turgent. Those units are made of series of concentric lamellae, rich in thin or short needles. The proteic layer has two regions, the external one with fibers interdigitated in several directions; the internal layer is a thin invaginated film
Added by: Admin |