slovo | definícia |
Nereis (gcide) | Nereis \Ne"re*is\ (? or ?), prop. n.; pl. Nereides. [L.]
1. (Class. Myth.) A Nereid. See Nereid.
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2. (Zool.) A genus, including numerous species, of marine
chaetopod annelids, having a well-formed head, with two
pairs of eyes, antennae, four pairs of tentacles, and a
protrusile pharynx, armed with a pair of hooked jaws.
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| podobné slovo | definícia |
Heteronereis (gcide) | Heteronereis \Het`e*ro*ne*re"is\, n. [NL. See Hetero-, and
Nereis.] (Zool.)
A free-swimming, dimorphic, sexual form of certain species of
Nereis.
[1913 Webster]
Note: In this state the head and its appendages are changed
in form, the eyes become very large; more or less of
the parapodia are highly modified by the development of
finlike lobes, and branchial lamell[ae], and their
set[ae] become longer and bladelike.
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