The use of spermatozoal characters in elucidating animal phylogeny (spermiocladistics) has
been successfully applied in the decapod crustaceans. Most of the studies investigating …

Decapod unistellate spermatozoa are primarily characterized by the presence of a single
appendage (spike) extending from the acrosome. Among decapods, this type of …

Penaeoidea is a diverse group of economically important marine shrimps. Attention to the
evolutionary history of the penaeoids has been raised since studies using mitochondrial …

Reflecting the wide variety of ideas and hypotheses concerning decapod phylogeny, the
world's leading decapodologists assemble their knowledge in this volume for the sole …

The suborder Dendrobranchiata includes shrimp that have an important role in estuaries
and marine ecosystems. The approximately 500 extant species range from shallow waters in …

This study reports about the spermatozoal ultrastructure of three species of astacid crayfish,
ie, the stone crayfish Austropotamobius torrentium, signal crayfish Pacifastacus leniusculus …

We describe the sperm ultrastructure of six penaeid species, including at least one member
of each tribe (Penaeini, Parapenaeini and Trachypenaeini). Fragments of the vas deferens …

Several shrimp species from the clade Penaeidae are farmed industrially for human
consumption, and this farming has turned shrimp into the largest seafood commodity in the …

We describe the sperm ultrastructure of two sympatric rock shrimps, Sicyonia dorsalis and
Sicyonia typica, and compare them in a molecular context to provide new insight into the …

The male reproductive system of L. schmitti is described, including spermatozoon
ultrastructure. The testis is composed of 8 to 14 lobules arranged as seminiferous tubules …