Zoological classification : a handy book of reference with tables of the subkingdoms, classes, orders, etc., of the animal kingdom, their characters and lists of the families and principal genera / [Francis Polkinghorne Pascoe].

  • Francis Polkinghorne Pascoe
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: Zoological classification : a handy book of reference with tables of the subkingdoms, classes, orders, etc., of the animal kingdom, their characters and lists of the families and principal genera / [Francis Polkinghorne Pascoe]. Source: Wellcome Collection.

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    Without a shell. Without a nucleus Monera. With a nucleus Amceboidea. With a shell. Shell calcareous Foraminifera. Shell siliceous Radiolaria. Order I. MONERA. Homogeneous, structureless, naked particles of albumen capable of nourishment and reproduction. No nucleus nor contractile vesicle. In their mode of feeding and development, the Monera agree with the Foraminifera. Several of the forms are subject to be- coming encysted, and then to breaking up into spores, which may or may not at first resemble the parent. Others, assuming an amoeboid condition, may, when two come in contact, unite their pseudopodia and form a contractile network [plasmodium]. In Protomyxa the spores unite to form a body like the parent. There are about fifteen species known, which are found in fresh water as well as in the sea. There are two divisions :— Naked (never encysted), reproduced by division... Gymnomonera. Encysted in a structureless membrane during a quiescent stage, then breaking up into spores ... Lefomonera. Gymnomonera. Lefomonera. Protamceba. Protomonas=Monas. Protogenes. Protomyxa. Myxodictyum. Vampyrella. Myxastrum. • Order II. AMCEBOIDEA. Amcebina. Lobosa. Atriciia. Protoplasta. Sphygmica. Homogeneous, nearly structureless animals, with nucleus and contractile vesicles. Pseudopodia mostly short and broad, neither ramifying nor coalescing. These are mostly freshwater organisms, although a few are found in moss or in the earth; thoy resemble the colourless