Articulo
Ulteriori osservazioni comparative sul ciclo sessuale annuo delle rane rosse o temporarie d’Europa
Registro en:
issn:0026-9786
Autor
Cei, José Miguel Alfredo María
Institución
Resumen
Le condizioni isto-topografiche del testicolo di <i>Rana arvalis</i> nel periodo invernale e i loro rapporti con la fase di stasi spermatogenetica del ciclo pituito-genitale. On the histological ground conditions of hibernating gonads of <i>Rana arvalis</i> male correspond to the morphological structure prevised for this form, that I related in a precedent paper to the european wood-frogs <i>phylum</i> which has ereditary endocrinous regulation of spermatogenesis. The interstitial tissue is in this specimens widely developped and his increase van be compared with the wide-spread of their secundary sex characters (mating season). Material digitalizado en SEDICI gracias a la colaboración del Dr. Jorge Williams (FCNM-UNLP). Facultad de Ciencias Naturales y Museo