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

The structures of differentiating male germ cells in the testis of the giant freshwater prawn,
Macrobrachium rosenbergii, were studied by light and electron microscopy. Based on …

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 …

Abstract The families Aethridae and Calappidae were originally considered as part of the
same family; however, their morphology and molecular biology separate them into two …

The acrosome-less spermatozoon of Aristaeopsis edwardsiana (Crustacea, Aristeidae),
which consists of a central non-membrane bound nuclear region surrounded by a thin …

The present study evaluated spermatozoal capacitation in Farfantepenaeus paulensis. This
process has direct applications in aquaculture, and it consists of the ionic, biochemical and …

The spermatozoal ultrastructure in three solenocerid shrimps (Solenocera membranacea, S.
africana, and Pleoticus muelleri) from different Atlantic locations was examined with the aim …

The sperm structures of pandalid shrimps were previously undescribed. We determined the
mature sperm morphology and ultrastructure of Pandalopsis japonica by means of light and …