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Hymenolepididae
__NOTOC__ The Hymenolepididae are family (biology), family of cyclophyllid cestoda, tapeworms. Their characteristic feature is the small number of testes (one to four). The unilateral genital pores and large external seminal vesicle allow for easy recognition. Most species are small, transparent, and easy to study. The family contains over 90 genera with over 900 species, having as their Host (biology), definitive host birds (c. 700 species) or mammals (about 250 species). Most reside in the intestines of their definitive hosts. The majority of species with known lifecycles have arthropods as Host (biology), intermediate hosts. As human parasites The family Hymenolepididae has only two species which infects humans: the disease hymenolepiasis is caused by ''Hymenolepis nana'' and ''Hymenolepis diminuta, H. diminuta'', which are sometimes classified in the genus ''Rodentolepis''. Most cases of hymenolepiasis are caused by ''H. nana''. It occurs worldwide, but in temperate clima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Confluaria
''Confluaria'' is a genus of flatworms belonging to the family Hymenolepididae __NOTOC__ The Hymenolepididae are family of cyclophyllid tapeworms. Their characteristic feature is the small number of testes (one to four). The unilateral genital pores and large external seminal vesicle allow for easy recognition. Most speci .... It contains six species, with the seventh species added in 2008. *'' Confluaria capillaris'' *'' Confluaria furcifera'' *'' Confluaria islandica'' *'' Confluaria japonica'' *'' Confluaria krabbei'' *'' Confluaria podicipina'' *'' Confluaria pseudofurcifera'' References {{Taxonbar, from= Q18583002 Cestoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclophyllid
Tapeworms of the order Cyclophyllidea (the cyclophyllid cestodes) are the most important cestode parasites of humans and domesticated animals. All have multiple proglottid "segments", and all have four suckers on their scolices (heads), though some may have other structures, as well. Proglottids of this order have genital openings on one side (except in the Dilepididae, which have genital openings on both sides), and a compact yolk gland or vitellarium posterior to the ovary. Families include: * Dipylidiidae, the most important member of which is ''Dipylidium caninum,'' also called the "cucumber tapeworm" or the "double-pore tapeworm" * Hymenolepididae, including the genus '' Hymenolepis'', a human parasite * Taeniidae, which consists of livestock parasites in the genus '' Taenia'' and parasites that encyst in humans of the genus ''Echinococcus'' * Anoplocephalidae, which includes several tapeworms of horses and a genus of tapeworms of ruminants, the '' Moniezia'' * Davain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rostellum (helminth)
Rostellum (meaning "small beak", from the Latin ' for " beak"; pl. rostella) in helminthology is a protruding part of the anterior end of tapeworms. It is a retractable, cone-like muscular structure that is located on the apical end of the scolex, and in most species is armed with hooks, the organs of attachment to the host's intestinal wall. It is a parasitic adaptation in some cestodes for firm attachment in the gastrointestinal tract and is structurally different from one species to another (or even absent is some species), thereby becoming an important diagnostic feature. Structure A rostellum is a knob-like protrusion at the extreme anterior end of a tapeworm, as an extension of the tegument. It is globular, spiny structure when it protrudes, and a circular hollow pit when retracted. It is structurally composed of a number of concentric rows of hooks. The number and arrangement of the hooks are species specific. The two basic types of hooks are those of the upper row, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grain Beetle (other)
Grain beetle may refer to: *Flat grain beetle *Foreign grain beetle *Merchant grain beetle *Saw-toothed grain beetle See also: Flour beetle Flour beetles are members of the darkling beetle genus, genera ''Tribolium (beetle), Tribolium'' or ''Tenebrio''. They are pests of cereal silos and are widely used as laboratory animals, as they are easy to keep. The flour beetles consume wheat ... {{disambiguation Animal common name disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
