testacean


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  • noun

Words related to testacean

any of various rhizopods of the order Testacea characterized by having a shell

References in periodicals archive ?
For the biological data on testacean densities, the DCA indicated that the species compositions at the Veu de Noiva and Cachoeirinha sampling sites were more similar to each other, and the Salgadeira site differed from the two aforementioned sites, varying consistently between the sampling periods (p = 0.
In general, it was found that the testacean assemblages presented low densities; the development of high densities in these environments seems to be unfavorable due to the fast-flowing currents (VELHO et al.
Occurrence of family, thecal shape, and total abundance of the inventoried testacean taxa at the three waterfalls (Veu de Noiva (V), Cachoeirinha (C) and Salgadeira (S)) in the dry and rainy seasons in Chapada dos Guimaraes National Park, Mato Grosso State, Brazil.
2008) revealed higher densities in the rainy season due to entrainment of testaceans from the sediment, but in the case of the waterfalls, this factor was only observed at Veu da Noiva, while at Cachoeirinha the correlation with the precipitation factor did not show a significant variation and at Salgadeira the correlation was negative.
In his discussion of the "spontaneous generation" of testaceans Aristotle makes it clear what the crucial point is.
50) This passage, too, is found in Aristotle's famous chapter on the generatio spontanea (51) of testaceans and certain other kinds of living creatures.
52) He said there that testaceans occupy an intermediate position between animals and plants.
For this reason testaceans and mollusks and crustaceans (all of which are bloodless and have a cold physis) are especially generated in shallow parts of the sea and in river estuaries.
21, which was exclusively concerned with testaceans as a category of ensouled entities intermediate between plants and animals.
So Aristotle may be saying here that in the sea, (59) where one would only expect to find aquatic animals, testaceans develop too, which closely resemble plants (properly belonging on land).