Abstract
In the present research the morphogenetic modalities of the vertebrae ofBufo bufo andHyla arborea were studied by histological examinations of successive stages of development. The data obtained show that inBufo bufo the developmental pattern of the vertebrae is «perichordal», and confirm previous data obtained in otherBufo species. On the contrary inHyla arborea an «epichordal» pattern was observed. The sistematic implications of the diversity in the development of the vertebrae are discussed.
Riassunto
Nella presente ricerca sono state studiate le modalità morfogenetiche delle vertebre diBufo bufo edHyla arborea analizzando istologicamente stati di sviluppo successivi. Le osservazioni effettuate inBufo bufo evidenziano unpattern di sviluppo vertebrale di tipo «pericordale» e confermano quanto già riportato per altre specie del genereBufo; diversamente inHyla arborea viene riscontrato unpattern di sviluppo vertebrale di tipo «epicordale». Ciò mette in evidenza che non è possibile considerare la famiglia Hylidae come caratterizzata da unpattern di tipo «pericordale». Alla luce di questi dati vengono effettuate delle considerazioni sistematiche.
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Nella seduta del 18 novembre 1989.
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Bosco, L., Capanna, C.E. Morfogenesi delle vertebre e systematica degli Anuri. I. Bufo bufoe Hyla arborea. Rend. Fis. Acc. Lincei 1, 177–186 (1990). https://doi.org/10.1007/BF03001893
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DOI: https://doi.org/10.1007/BF03001893