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Morphological re-evaluation of the parotoid glands of Bufo ictericus (Amphibia, Anura, Bufonidae) Naturalis
Almeida, P.G. de; Felsemburgh, F.A.; Azevedo, R.A.; Brito-Gitirana, L. de.
Multicellular glands in the amphibian integument represent a signifi cant evolutionary advance over those of fi shes. Bufonids have parotoid glands, symmetrically disposed in a post-orbital position. Their secretion may contribute to protection against predators and parasites. This study provides a re-evaluation of the morphology of the Bufo ictericus parotoid glands. The parotoid gland integument of the medial surface shows rounded depressions with small pores that connect with the duct openings of the larger granular glands. Under light microscopic evaluation the integument is constituted by typical epidermis, supported by dermis subdivided into a spongious dermis, a reticular dermis, and a compact dermis. The Eberth-Katschenko layer is...
Tipo: Article / Letter to the editor Palavras-chave: Morphology; Amphibian integument; Exocrine glands; Bufonid; 42.82; 42.62.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/256117
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Short notes and reviews Bidder’s organ in the female of Bufo ictericus: morphological characterization Naturalis
Farias, C.F.; Brito-Gitirana, L. de; Carvalho-e-Silva, S.P..
Bidder’s organ has been cited as a structure present only in males of the toad family Bufonidae, and is used as a systematic characteristic. In this study, we examined females of Bufo ictericus in order to ascertain whether this structure also occurs in females. Macroscopic observations and light microscopy technique for paraffin embedding were performed. This study reveals that females of Bufo ictericus can have a Bidder’s organ with typical morphology, and in close spatial relationship with the ovary. This suggests that the Bidder’s organ is not an exclusive structure for male toads, but that it may also occur in active females.
Tipo: Article / Letter to the editor Palavras-chave: Morphology; Bidder’s organ; Female; Bufonidae; Bufo ictericus.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/534384
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