metraterm

metraterm

[′mē·trə‚tərm]
(invertebrate zoology)
The distal portion of the uterus in trematodes.
References in periodicals archive ?
Here, however, only the eggs near the metraterm contained biocellate larvae, in contrast with the illustrations presented in the previous studies (Siddiqi and Cable, 1960; Hendrix and Overstreet, 1977; Bray, 1984), which depicted most of the eggs containing biocellate larvae.
His proposition was based on the presence of a well defined oesophageal pouch and certain other differences such as the presence of a well developed globular pars prostatica, a highly muscular metraterm and a protrusible ductus hermaphroditicus in the specimens, which otherwise resembled the genus Genarchopsis (syn.
Metraterm somewhat sinous, penetrate from side of genital atrium and opens through female genital pore into genital atrium.
Body flat, spatulate, nonspinous; oral sucker subterminal; ventral sucker in anterior half of body; pharynx present; esophagus short; ceca long; testes tandem, in posterior third of body; ovary intertesticular; cirrus sac in hindbody, anterior to gonads; cirrus spiny; seminal vesicle bipartite, internal; genital pore in hindbody, ventral to left cecum; vitelline follicles around ceca in fore- and hindbody; uterus confined to hindbody; metraterm present.
level (119) N large body spines long and narrow (120) N testes extending posteriorly only to level of metraterm