genital atrium

genital atrium

[′jen·ət·əl ′ā·trē·əm]
(zoology)
A common chamber receiving openings of male, female, and accessory organs.
References in periodicals archive ?
Genital atrium located on the left side and close to acetabulum, containing nine accessory atrial sacs (also called atrial fingerlings), with two rows of sclerotized bars, one with four on the base of atrium and the other with five over it.
Genital atrium lateral to the acetabulum, containing nine accessory atrial sacs, with sclerotized structures in the form of bars, arranged in two rows, one anterior with five and one posterior with four.
Both vagina and free oviduct distinctly longer than very short genital atrium.
Distally, fourth region passes into the extremely small genital atrium, extending through body wall to open via genital aperture.
The right pedal retractor passes through the genital atrium, attaches at its midpoint to the apex of the penis and continues forward to the foot.
Ovary consists of 7-8 lobes immediately anterior to testes, uterus coiled, small, between ovary and ventral sucker extending anteriorly to the level of genital atrium.
Cirrus sac is long extending from the anterior level of acetabulum to the base of oesophagus containing bi-lobed seminal vesicle at the base, a small pars prostatica and a long ejaculatory duct ending into a small, shallow genital atrium.
the different diverticula of the genital atrium and their associated apodemes, as well as the ejaculatory canal and its atrium.
Body divided into flat forebody, containing the suckers and bulbous tribocytic organ, and a cylindrical hindbody which contains the organs of reproduction; testes tandem, in middle of hindbody; cirrus sac absent; seminal vesicle free in parenchyma; thick-walled paraprostate organ posterior to testes; genital atrium present; genital pore dorsal, near posterior end of body; hermaphroditic canal present; vitelline follicles in both fore- and hindbody or confined to forebody; parasitic in intestine of reptiles, especially alligators.
Uterus pre-ovarian, uterine coils fills the space between ovary and ventral sucker, metaterm tubular, slightly narrow, opens into genital atrium.
Genital atrium situated on left side of acetabulum, surrounded entirely by male genital papilla, 21-24 long by 16-26 wide.