The tentacle which appears so early is probably not to be regarded as a modified zooid, but as a true tentacle.
One tentacle makes its appearance for each chamber.
With the growth of the embryo the tentacles increase in number, the new pairs being always added between the odd dorsal tentacle and the next pair.
In the younger ciliated embryo A, viewed from the side, only one tentacle is developed.
Between the two there is already present the rudiment of a tentacle, and a second tentacle soon becomes formed.
An odd tentacle is always found at the extremity of the mouth opposite the oldest tentacles.
The most remarkable feature in the appearance of the tentacles is due to the fact that the tentacle surmounting the primitive largest chamber arises before any of the others, and long retains its supremacy (fig.
The oral of these is the rudiment of a tentacle (t), and the aboral of a nectocalyx (nc).
In this connection the peculiar unilateral development of a tentacle in Scyphistoma and Actinia should be noted.
The difficulty of deciding this point on embryological evidence depends on the fact that ontologically a tentacle and a true bud arise in the same way, viz.
Each primary tentacle corresponds to one of the radials.
The supremacy of the first-formed tentacle is not confined to the Actinozoa, but as has already been indicated, is also found in the Scyphistoma (p.
The terminal median lobe forms the tentacleat the end of the arm, and the eye is developed at its base.
Then the tentaclethat grasped the professor drew him back toward the scintillating nucleus.
And the pillar of violet fire rose up to counter it, clove it in two, as a man cuts off the tentacle of a cuttlefish, and left it groping helplessly above the heads of the Drilgoes.
But when the victim was thrown to the surface, when he stepped out, drained of the grayish smokelike essence, a tentacle still gripped his neck and another rested directly on top of his head.
The giant tentacle drew back into the globe and became itself a current.
Should a tentacle be destroyed, we can put forth another.
He started to push out from under the scant shelter, but an alert tentaclehissed through the air in a swift stab at him, and he dodged back, hopelessly.
Another tentacle curled about the couch of a second aristo, pinning the occupant to it.
A long tentacle left its keys and swished menacingly through the air.
These are the tentacle sacs, in which are coiled up the tentacles, which we shall describe presently.
Some day I will show you one of these cups with the tentacles stretched out and mounted on a slide, so that you can examine a tentacle with a very strong magnifying power.
His keen eyes had caught the projecting tentacle of a squid.
But the brief exposure of the portion of one tentacle had advertised its owner as a squid of size.
Even as he swam, the tentacle was lazily withdrawn, so that there was no sign of the creature.
A long tentacle whipped out and wrapped around his leg.
Two more jumps brought the frog almost to Maget's feet, and the tropical tramp felt a whiskerlike tentacle touch his face, and bad smelling slime covered him.
But even as he pulled the trigger, a long tentacle reached from the dark crevice behind him and jerked his arm.
The tightening tentacleshut it off in a choking gurgle.
But still a hideous black tentacle clung about her ankle, tugging at her, drawing her back despite her desperate struggle to break free.
The base of a tentacle bisected in the middle line.
Anteriorly the dorsal vessel splits into a right and a left half, which enter the small arm-sinus and, running along it, give off a blind branch to each tentacle (fig.
Moreover, the contents of all the cells seem to be of exactly the same nature, both before and after aggregation; and yet only a few of the basal cells contract, the rest of the tentacle remaining straight.
If a tentacle is examined some hours after the gland has been excited by repeated touches, or by an inorganic or organic particle placed on it, or by the absorption of certain fluids, it presents a wholly changed appearance.
This amount caused the tentacle bearing each gland to be greatly inflected.
The purple fluid which exudes from a crushed tentacle is somewhat coherent, and does not mingle with the surrounding water; it contains much flocculent or granular matter.
In these seven cases, the fragments or small flies, which had been carried by a single tentacleto the central glands, were well embraced by the other tentacles after an interval of from 4 to 10 hrs.
If a gland has been powerfully excited, all the cells down to the base of the tentacle are affected.
When the pedicel of a tentacle is cut off by a sharp pair of scissors quite close beneath the gland, the tentacle generally becomes inflected.
Tentacles in a slightly curved transverse line, the outer paired tentacle on each side lying a little farther forward than the inner.
The median tentacle farther forward than in pigmentata, well in front of the eyes, its anterior edge being nearly in line with the caudal margins of the paired tentacles; composed of twenty-eight or more short articles.
Median tentaclesurpassing palpi in length; subapical swelling pronounced, much more so than that of the laterals.
Median tentacle in line with the centers of the anterior eyes; short and pointed, shorter than the width of the prostomium.
Lower tentacular cirrus about equalling a tentacle in length, the dorsal longer, both of similar form.
Tentacular cirri resembling median tentacle in form, being narrowed distad with subapical enlargement slight; one or two fine setae emerging from a small nodule at distal end of parapodium proximad of tentacular cirrus.
Prostomium wider than long, deeply bilobed, the median tentacle inserted deeply in the intervening incision.
The anterior eyes much larger than the posterior and farther apart, each somewhat transversely elliptic and located far forward at base of lateral tentacle on its ectal side.
Median tentacle situated midway between the two eye groups in a longitudinal furrow dividing prostomium; composed of eighteen to twenty-three short articles.
Median tentacle shorter than the palpi, moderately enlarged and strongly rounded subapically and with the usual slender tip or filament which is comparatively short.
Unpaired tentacle situated between eyes in line connecting their centers, nearly of same length and size as the first tentacular cirri and about as long also as prostomium; annulate.
Median tentacle long, nearly attaining end of palpi; slender, narrowing distad, only slightly thickened subapically, with the usual slender tip which is of moderate length.
Each paired tentacle at corner of prostomium in front of eye-group of corresponding side; similar in form and size to the median tentacle.
Unpaired tentacle situated well caudad, more slender than the paired ones but nearly as long.
The median tentacle about two and a half times longer than the prostomium; in the type composed of twenty-one articles; only a little narrowing over the distal region.
And the lower surface of each arm is furnished with a row of circular suckers, the grip of which is so powerful that the tentacle may even be torn in two without causing it to release its hold.
In spite of their struggles one tentacle after another comes closing in, till they are completely surrounded by the long, slimy arms, soft almost as jelly, yet strong as steel.
He had now stopped his retreat and was already fumbling a tentacle toward the tube-weapon in his belt.
Blake started to voice the many questions that were surging through his mind, but an imperious gesture of an outflung tentacle stopped him.
Illustration: Blake made a lightning snatch at a tentacle with both hands.
Blake made a lightning snatch at a tentacle with both hands, and in the same lithe movement turned from the barrier wall and flung himself headlong toward the center of the enclosure.
He hurled a stone, picked out of the landslip at the corner, and hit a tentacle full and fair with a dull thud like leather.
In a fury of repulsion he stooped to pick up a rock, but when he hurled it the last tentacle was just sliding into the pool, and it seemed to him that it waved an ironical farewell before it disappeared.
As delicate and dainty as this little creature is, it has a marvelous arrangement for seizing prey, each tentacle having about three thousand transparent cylinders, each of which contains twenty stalked suckers.
Sometimes they were caught at the very edge; a long, livid tentacle would come shooting out of the water like a flame and seize the victim.
The tentacular bases and pouches are present, but there is no main tentacle as in Cydippidea; fine accessory tentacles lie in four grooves along the oral edge.
The slip, the frantic clutch at the rocks, the great tentacle which shot out and gripped his leg, and then the flash of my own revolver fired five times at the terrible eyes below me.
He pointed a tentacle toward the south end of the stadium, and a pillar of leaping flame arose; fed with no fuel, never to cease its fire, the symbol of possession.
One flashed a shining tentacle around, as if to point to the stadium, the pitifully small spaceship on display, the crowds of people.
From the region of his heart, a tentacle had budded.
Before he realised what she was about to do, she threw her tentacle round his neck, like another arm.
Tubularia* also may behave in three different ways, if, as I described to you, the terminal one of its two newly arisen rings of tentacle primordia is removed again.
Just below the eye is a small triangular process (not seen in our figures), having the structure of a shortened and highly-modified tentacle and sheath.
Owen in strongly opposing this identification, and in regarding such tentacle as the equivalent of a whole lobe or arm of a Decapod or Octopod Dibranch.
The sheaths are muscular as well as the tentacles, and are simply tubes from the base of which the solid tentacle grows.
Their tentacle hands were soft and cold to my skin.
I remembered that when I was smoking the pipe I did think I saw the uplifted tentacle moving, as though it were reaching out to me.
Farther and farther the creature reached forward, until on a sudden, with a sort of jerk, the movement assumed a downward direction, and the tentacle was slowly lowered until the tip rested on the stem of the pipe.
The beast pointed its upraised tentacle directly at me.
As I inhaled the pungent tobacco thattentacle impressed me with a feeling of actual uncanniness.
Where was that spot to which the tentacle of the monster could not reach?
To what length was the tentacle of the monster to extend?
A mere accident, for instance, it was that led to the Prince of Monaco's discovery of nearly a dozen new forms in the summer of 1895, a discovery in which the before-mentioned tentacle was included.
B, The same, partially everted by eversion of the sides, as in the Nemertine proboscis and Gastropod eye-tentacle = pleurecbolic.
So too the acrembolic eye-tentacle of the snail has a complete range of movement, and also the pleurembolic proboscis of the Rhabdocoel prostoma.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "tentacle" in a variety of sentences. We hope that you will now be able to make sentences using this word.
