Lophophorates: An Introduction
The final three phyla in this chapter are the most controversial taxa placed within Protostomia. Evidence that Ectoprocta, Brachiopoda, and […]
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Zoology
Phylum Entoprocta
Entoprocta (en’ – to-prok ‘-ta) (Gr. entos, within, + proktos, anus) is a small phylum of about 150 species of
Phylum Gastrotricha
Gastrotricha ( gas-tro-tri’ -ka) (N. L. fr. Gr. gaster, gastros, stomach or belly, + thrix, trichos, hair) includes small, ventrally
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Phylum Micrognathozoa
The first and only micrognathozoan , Micrognathozoa specimen, was collected from Greenland in 1994 but not formally described until 2000.
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Phylum Rotifera: External and Internal Feature
Rotifera (ro-tif -e-ra) (L. rota, wheel, fera, those that bear) derivet heir name from the characteristic ciliated crown, or corona,
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Phylum Gnathotomulida
Gnathostomulids are delicate wormlike animals less than 2 mm long . The first known species of Gnathostomulida (nath’o-sto-myu’lid-a) (Gr. gnathos,
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Phylum Nemertea
Nemerteans (nem-er -te-ans) are often called ribbon worms. Their name (Gr. Nemertes, one of the Nereids, unerring one) refers to
Phylum Mesozoa
The name Mesozoa (mes-o-zo -a) (Gr. mesos, in the middle+ zoon, animal) was coined by an early investigator (vanBeneden, 1876)
Taenia saginala: Beef Tapeworm
Taenia saginata (Gr. tainia, band, ribbon) is called the beef tapeworm, but it lives as an adult in the human
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Schistosoma: Blood Flukes
Schistosomiasis, infection with blood flukes of genus Schistosoma (Gr. schistos,divided, + soma, body), ranks among the major infectious dis eases
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