ABSTRACT A small brachyuran crab, Archaeochiapasa mardoqueoi n. gen., n. sp., is
reported from the lower Cenomanian (Upper Cretaceous) of the Sierra Madre Formation at …

To enhance comprehension of the destiny of the spermatozoon throughout the reproductive
process of mud crab (Scylla paramamosain) is important for achieving large-scale artificial …

The reproductive system of spider crabs (Majoidea) has raised considerable interest due to
the complexity of female sperm storage organs. In several majoid species, the seminal …

Most Majoidea crabs display high sperm competition rates due to the development of
spermatic strata within the seminal receptacle (SR). To verify the occurrence of sperm …

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

ABSTRACT A new and revised classification of the small family Dorippidae H., which
previously comprised two distinct subfamilies (Dorippinae H. and Ethusinae), each of which …

Two fundamentally different sperm storage organs occur in Brachyura. The probably
paraphyletic podotremes show intersegmental spermathecae, which are distant from …

In species of Callinectes a sperm plug is formed in the seminal receptacle (SR) during the
sperm transfer, which hinders the insemination by other males. In this study, we evaluated …

Recent studies revealed a high diversity of reproductive structures in heterotreme
brachyurans, while those of Thoracotremata seem rather uniform. Yet, there still is a huge …

The eubrachyuran Hymenosomatoidea is widely distributed in tropical and subtropical
regions ranging from marine to freshwater habitats. Even though the biology of this taxon …