Female: Cibarium with many more than 4 horizontal teeth arranged as a fence; spermatheca
with basal striations .
Morphology of spermatheca
in the estuarine crab Chasmagnathus granulata Dana 1851 (Grapsidae, Sesarminae).
It seems that this passage plays a role as a pathway for the sperm to flow from the male ejaculatory duct to the spermatheca
Female: color patterns similar to that of male but somewhat more defined; dorsum of head with the four light brown maculae garnished with dark setae pointing to the front (setae absent on males); cluster of bristles on inter-ocular space not as dense as for the male; supra-anal and subgenital plates as in Figs 4B, C; ovipositor medium brown with darker apical valves; spermatheca
as in Fig.
Species identification was performed thereafter by observing the cibarial armatures, spermatheca
and the pharynx using identification keys (13).
Then, the sperm are held in a receptacle between the ovipore and ovary, known as a spermatheca
, till the release of an egg.
The female reproductive system is a bilaterally symmetrical, H-shaped structure in the antero-lateral portion of the cephalothorax, composed of ovaries, which run to the posterior, joined by a transversal commissure in the antero-lateral portion of the cephalothorax, gonoducts (Figure 2a) and a specialized dilation of the gonoduct, known as the spermatheca
In Megalopus armatus (Megalopodidae) the male has a long endophallus with complex membranous protuberances and a terminal flagellum that probably reaches the spermatheca
Arrangement of sperm within the spermatheca
of fleas, with remarks on sperm displacement.
An enlarged sac-like bursa copulatrix opened into the common oviduct just posterior to the spermatheca
Sternal setae long, reaching to base of next setae in line; membranous infold present between genital and ventrianal shield; spermatheca
tubular, atrium indistinct .
Base of each spermatheca
with scale-like sculpturing (Fig.