| spermatozoa of pseudinae (amphibia, anura, hylidae), with a test of the hypothesis that sperm ultrastructure correlates with reproductive modes in anurans. | we describe, for the first time, the sperm ultrastructure of the two genera of pseudinae. based on sperm ultrastructure, the five species herein examined can be separated into three groups: one containing pseudis paradoxa, p. bolbodactyla, and p. tocantins, the second containing p. minuta, and the third containing lysapsus laevis. the midpiece is similar in all species and auxiliary fibers and the undulating membrane are absent. in pseudis a subacrosomal cone and a multilaminar structure (p. min ... | 2004 | 15216524 |