In the brachyuran crab Metopograpsus messor mating occurs only among" hard"(intermolt)
individuals. Our present light and electron microscopic studies reveal that the …

The anatomy of the male reproductive organs of the brachyuran crab Eriphia verrucosa is
presented, with a detailed analysis of the histology and histochemistry of the regional …

Although mating has been described in several hermit crab species, the mechanics of
spermatophore transfer have not previously been demonstrated. Evidence from pleopod …

Pachygrapsus transversus, P. gracilis, and Geograpsus lividus are intertidal crabs, whose
ultrastructure of spermatophores and spermatozoa are unknown. In this work, we …

The male reproductive system of Amazon freshwater crabs Sylviocarcinus pictus and
Dilocarcinus pagei were described and compared in terms of anatomy and histochemistry In …

Reproductive anatomy, including sperm storage structures and sperm transfer, is an
important feature used to analyze phylogenetic relationships among taxa. We describe the …

This paper deals with sperm competition in the Brachyura and its implications for male
mating behavior. Females of all brachyuran species possess sperm storage organs, of …

The structure and function of the reproductive tracts of the spider crab Inachus phalangium
were investigated, focusing on sperm transfer, sperm storage in the seminal receptacles …

Various aspects of the reproductive anatomy of the spider crab Inachus phalangium are
investigated utilizing light and electron microscopy. Spermatozoal ultrastructure reveals the …

The spermatozoa of Potamon fluviatile and P. ibericum are virtually indistinguishable and do
not support separate subgeneric rank (Potamon and Pontipotamon, respectively) …