1,4,9) Each segment contains two proglottids
and each proglottid
has both male and female reproductive organs, which classifies the organism as hermaphroditic.
The eggs contained in the gravid proglottid
(about 50,000 each) are released after the proglottid
becomes free and are passed with the feces.
Each segment, or proglottid
, may contain as many as 40,000 eggs.
The sections of the worm, appearing somewhat like the inch marks on a measuring tape, are called proglottids
, and each proglottid
contains hundreds of eggs.
Ate raw 2011 Jul Raw salmon salmon in 2011 GenBank Proglottid
accession Case specimen Morphologic Molecular no.
Species identification relied on egg and proglottid
morphologic characteristics and epidemiologic factors.
Morphologic differentiation by either scolex or gravid proglottid
of these 2 species is practically impossible (1,3).
Of the 4 adult worm specimens (strobila fragments) available for analysis, the largest fragment was 900 mm long by 7 mm wide with an average proglottid
length of 2.
pacificus tapeworm represents one of the few exceptions because its proglottids
possess papilla-like protuberances separated by semicircular pits between the genital atrium and the anterior margins of segments (1); these protuberances are absent in other species that cause diphyllobothriosis.
We agree with Dyer and Klimstra (1982) that the name Mesocestoides variabilis should be used for these tapeworms from foxes especially those with rectangular terminal proglottids
But once a tapeworm matures, it begins releasing rather large, semi-self-propelled egg-filled sacks called proglottids
Microscopically, visualization of proglottids
, eggs, or cysts as well as adult fluke organisms provides the specific evidence needed to identify these infectious parasites.