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The spermatozoon of peracarida

1980; Academic Press; Volume: 73; Issue: 3 Linguagem: Inglês

10.1016/s0022-5320(80)90085-4

1878-2345

Franco Cotelli, Carla Lora Lamia Donin,

Parasite Biology and Host Interactions

The spermatozoon of Tanais cavolinii and Apseudes latreille (Crustacca, Peracarida) is elliptic and contains an irregular nucleus, a large and complicated acrosomal complex, mitochondria, and a cytoplasm with abundant microvesicles. Centriolar and flagellar structures seem to be completely lacking and the cell is immotile. Since the ultrastructure of the spermatozoon of Tanais cavolinii and Apseudes latreille seems to differ from that of other types of spermatozoa within Peracarida studied until now, it is proposed that Tanaidacea occupies an isolated position within the Peracarida.