spermatheca


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Related to spermatheca: Aedeagus

spermatheca

(spûr′mə-thē′kə)
n. pl. spermathe·cae (-sē)
A receptacle in the reproductive tract of many female or hermaphrodite invertebrates and certain female vertebrates, in which spermatozoa are received and stored until needed to fertilize the ova.

sper′ma·the′cal adj.

spermatheca

a sac for the storage of sperm, a ‘seminal receptacle’ as occurs in the female reproductive tract of many lower animals, such as insects and PLATYHELMINTHS.

spermatheca

accessory organ opening into the common oviduct in female insects; stores spermatozoa delivered by the male during copulation; the sperm may remain viable for the life of the female.
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References in periodicals archive ?
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.
Sternal setae long, reaching to base of next setae in line; membranous infold present between genital and ventrianal shield; spermatheca tubular, atrium indistinct .