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Sperm morphology of Batrachyla (Anura: Leptodactylidae)

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The structure of immature and mature sperm of the three species of Batrachyla were compared by using smears for light microscopy and ultrathin sections for transmission electron microscopy. Minor differences in length and some ultrastructural details support the notion that B. antartandica and B, taeniata are more closely related to each other than to B. leptopus. Comparisons of the sperm of Batrachyla with those of other anurans suggest the sperm morphology may be correlated with broad phylogenetic relationships as well as mode of fertilization.

Affiliations: 1: Instituto de Embriologia, Facultad de Ciencias, Universidad Austal de Chile. Casilla 567, Valdivia, Chile


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