When a polyp is cut into pieces, each piece becomes a new individual.
Now, for the next many days poor Potassium Pompey was a very unhappypolyp indeed.
The first accuser was Popkins, the miserly old polyp who was poor Peggy's father.
Pompey one day, after he had finished a dinner fit to set before a polyp king, `all I now want to make me perfectly happy is Peggy.
In some of the cases he had seen, the polyp was so difficult to get at, or was situated so far back in the nose, that it could not be reached by means of a tenaculum or scissors, or even the special knife devised for that purpose.
At times it may be necessary to touch the root of the polyp with a stylet, on which cotton has been placed that has been dipped in aqua fortis (nitric acid).
Others have teeth like millstones, fit for crushing the hard Coral, and eating the fleshy body of the polyp within.
This kind of polyp can live only in warm, clear water.
These marvellous works of the polyp are of great use, for they break the force of the waves, and so make a calm shelter for vessels.
The outer edge of each partition in thePolyp is pierced by a hole near the margin.
This jellylike substance disappears when the polyp dies, emitting ammonia as it rots.
First division in the polyp group, the class Spongiaria has been created by scientists precisely for this unusual exhibit whose usefulness is beyond dispute.
In between the two layers there is in our germ as in the polyp an indifferent mass" (p.
Cuvier points out that if by unity of composition is meant identity, then the statement that all animals show the same composition is simply not true--compare a polyp with a man!
It is in the most beautiful azure depths of the limpid water that this hideous, voracious polyp delights.
Upon a young polyp still attached to its parent he observed a new polyp or polypule, and upon this unborn creature was another individual.
Young Coral Polyp attached to a Rock and expanded.
Its mouth is round and much dilated; it opens in the cylindrical or trumpet part, which is contained in a sac in the form of elongated fusci, clothed in the whitish integuments which formed the body of the polyp when perfect.
I have seen a mother-polyp which had carried its third generation.
Divide a fresh-water polyp into five or six parts, and at the end of a few days all the separate parts will be organized, developed, and form so many new beings, resembling the primitive individual.
Charles Bennet, the naturalist of Geneva, says wittily, that a polyp thus charged with all its descendants constitutes a living genealogical tree.
When the young polyp is separated from the mother, it swims about, and executes all the movements peculiar to adult animals.
This polypwith its tentacles is cut up and fried, and reduced to the consistency of boiled celluloid.
At night it was a blaze of light which flashed from branch to branch, from polyp to polyp.
Its color is an olive brown, and when the polyp is expanded its little tentacles resemble the petals of a flower.
Single polyp corals, like Fungia, are found at great depths in the ocean, and certain corals grow in the Santa Catalina Channel on the Pacific coast.
I think that if we big human cousins of the little polyp were to follow the example set by these lowliest of God's creatures in this matter, we all would find, ourselves much better off in the end.
I consulted Klunzinger's "Die Korallenthiere des Rothen Meeres" and there found that at an early age the polyp is quite likely to become the victim of a sentimental passion which is directed at its own self.
Although I have no desire to retail gossip, I think that readers of this treatise ought to be made aware of the fact (if, indeed, they do not already know it) that a polyp is really neither one thing nor another in matters of gender.
There could be no formality about your relations with this polyp five minutes after your first meeting.
I had been working on a thesis on "Emotional Crises in Sponge Life," and came upon a polyp formation on a piece of coral in the course of my laboratory work.
It lives in colonies, but, unlike the hydroid colonies, each polypof the community is a complete organism, and in the reef-building corals all the individual polyps of a colony are alike.
The secretion forms a basal plate and radiating partitions between the mesenteries in the cavity of the animal, and also surrounds the polyp like a cup.
The large terminal polyp buds around the base; a surplus of lime also collects at the base and clogs its tissues, so that it no longer can perform the functions of life, and after a certain period the base becomes dead matter.
In the living coral each little polyp is like a minute sea-anemone, having a colored cylindrical body surrounded on its upper disk with numerous tentacles.
At certain stages of development the polyp sends out a horizontal expansion, which unites with the expansions of other polyps and becomes calcified, forming a shelf which binds the tubes together.
The spicules of lime secreted in the polyp unite or fuse into a tube or cylindrical skeleton.
The polyp on the upper end continues to live and rises above the excess of solid matter.
Thus, as the original polypconstantly rises and buds, the colony assumes a stem-like form, covered with numerous individuals.
In some cases he had seen the polyp was so difficult to get at or was situated so far back in the nose that it could not be reached by means of a tenaculum or scissors, or even the special knife devised for that purpose.
A polyp is either cut off or its pedicle bound with a ligature, and it is allowed to shrivel.
At times it may be necessary to touch the root of the polyp with a stylet on which cotton has been placed that has been dipped in aqua fortis (nitric acid).
When the little Polyp Coral, the Astraean or Madrepore, for instance, is born from the egg, it is as free as the Actinia, which remains free all its life.
But independence may mean either simple isolation, or independence of action; and the life of a single Polyp is no more independent in the sense of action than that of a community of Polyps.
Trembley, of Geneva, ascertained that different portions of one Polyp could be engrafted on another.
When one Polyp is introduced by the tail into another’s body, the two heads unite and form one individual.
The remains of the animal, on which the Polyp feeds, are evacuated at the mouth, the only opening in the body.
But the most astonishing fact respecting this animal is, that if a Polyp be cut in pieces, it is not destroyed, but is multiplied by dissection.
The adherent, dried and dead external tegument of the Polyp is called stem.
On the contrary, the tubes of the Sertulariæ must be held as being a tegumental excretion, within which the Polyp ramifies and produces ova-cysts.
In most of the cnidaria a small stationary polyp is developed out of the ovum of the free-swimming medusa, and this polyp, in turn, generates by budding medusae, which reach sexual maturity.
Some of them remain at a very low stage, as does our common green fresh-water polyp (hydra viridis), which only differs from the gastraea by a few variations in tissue and the formation of a crown of feelers about the mouth.
Each several coral-individual is equivalent to a single living polyp (actinia).
But the principle of radiation on which the whole branch of Radiates is constructed controls the organization of Acalephs no less than that of the other classes, so that a transverse section across anyPolyp (Fig.
The description of Polyp structure given above includes all the general features of the sea-anemone; but for the better explanation of the figures, it may not be amiss to recapitulate them here in their special application.
On a polyp a bud is formed by a hollow outgrowth of the body-wall.
They never appear in a polyp condition, but are always medusoid in shape.
Thus a polyp may produce a medusa or jellyfish which, however, produces not a new jellyfish, but a polyp.
In the Siphonophore shown in figure 14, the compound body is composed of a long central hollow stem with hundreds or thousands of variously shaped parts, each of which is reducible to either a polyp or medusazooid, attached around it.
The various polyp individuals of a colony may differ somewhat among themselves, and these differences are correlated with a division of labor.
In case of many polyps all or some of the new individuals which arise by budding do not become polyps, but develop into medusae or jellyfish, which separate from the fixed polyp and swim off through the water.
Not all medusae or jellyfish are produced by polyp individuals, nor do jellyfish always produce polyps and not jellyfishes.
And there is no difficulty in seeing that each of these parts is really, structurally considered, a modified polyp or medusa.
The bud grows, an opening appears at its distal end, a circlet of tentacles arises about this mouth-opening and a new polyp individual is formed.
By the development of numerous buds, and the remaining attached of all of the individuals developing from these buds, a colony of polyp individuals may be formed, plant-like in appearance.
There are over 2000 kinds of coral polyp known, and their skeletons vary much in appearance.
Lacaze-Duthiers, who went to the coast of Africa to study corals, met with a young polyp which requires the assistance of another polyp in its early condition.
It is a bundle of spicules like threads of glass, which seem artificially tied together, and on the surface of which we regularly find a polyp of the genus Polythoa.
Naturalists have given the name of Melithaea to a very beautiful polyp which forms colonies of two or three metres in height.
He has shown that the bundle is formed by the extraordinarily long spicules of the sponge, and that the polyp establishes itself upon it, by forming a sheath around the bundle.
The fact is no longer doubted by any one, that the long spicules form part of the sponge, and that the polyp establishes itself on a part of the colony.
In the substance of thispolyp lives a crustacean, the nature of which Mons.
The sturgeon seems to give lodging in its eggs to a polyp which plays the same part.
This remarkable polyp was brought from the Seychelles Islands by Mons.
Ehrenberg had recognized the polyp Polythoa around the spicules, but the Hyalonema was considered by him as an artificial product.
The Cydippe densa, a charming polyp of the Gulf of Naples, lodges in its gastro-vascular apparatus larvae of annelids, which may as well be considered parasites as messmates.
Martens, has noticed a Hemicuryale 49 pustulata on a polyp of Jamaica, known under the name of Verrucella Guadelupensis.
This crab is known by the name of Pisa Styx, the gasteropod is a Cypraea, the polyp is the Melithea ochracea.
