How to use Sea-anemones in a sentence
Wotton follows Aristotle 1 in the division of animals into the Enaema and the Anaema, and in fact in the recognition of all the groups above given, adding only one large group to those recognized by Aristotle under the Anaema, modifica- namely, the group of Zoophyta, in which Wotton includes the Holothuriae, Star-Fishes, Medusae, Sea-Anemones and Sponges.
The Hydrozoa are thus shown to belong to the group of Coelenterata Cnidaria, and it remains to consider more fully their distinctive features, and in particular those which mark them off from the other main division of the Cnidaria, the Anthozoa, comprising the corals and sea-anemones.
In the subdivision Anthozoa, comprising the sea-anemones and corals, the individual is always a polyp; in the Hydrozoa, however, the individual may be either a polyp or a medusa.
Externally they resemble ordinary sea-anemones, but there is only one ciliated groove, the sulcus, in the stomodaeum, and the mesenteries are arranged on a peculiar pattern.
The remaining forms, the Actiniidea, are divisible into the Malacactiniae, or soft-bodied sea-anemones, which have !already been described sufficiently in the course of this article, and the Scleractiniae (= Madreporaria) or true corals.Advertisement
Huxley's Actinozoa comprised the sea-anemones, corals and sea-pens, on the one hand, and the Ctenophora on the other.
The polyps behave like tiny sea anemones with stinging cells to capture the even smaller life in the plankton.
Many species of sea slug that eat sea anemones or hydroids, do it without activating their prey's stinging cells.
A4 - I am fascinated by the reproductive habits of the British sea anemones.
This orange color is diagnostic as it is not found in Metridium senile and other sea anemones of the NE Atlantic.Advertisement
There were also a few sediment-dwelling attachment type sea anemones discovered, although these were not Edwardsia ivelli.
De Blainville included in his group many unicellular forms such as Noctiluca (see PROTOZOA), sea-anemones, corals, jelly-fish and hydroid polyps, echinoderms, polyzoa and rotifera.
Many species of sea slug that eat sea anemones or hydroids, do it without activating their prey 's stinging cells.
Plumose, Beadlet and Sagartia troglodytes sea anemones were recorded.