Hydroid

It is searching with three Remus robotic submarines of its design that were produced by Hydroid Inc. of Pocasset, Mass.

French Seek Jet's Black Boxes Daniel Michaels 2011

The fourth attempt, conducted by specialists from the Woods Hole Oceanographic Institution in Woods Hole, Mass., also employed three of the most sophisticated sea scanners in the world, Remus robotic submarines produced by Hydroid Inc. of Pocasset, Mass.

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In the Hydroids, the organization does not rise above the simple digestive cavity inclosed by the double body-wall; and we might not suspect their relation to the Acalephs, did we not see the Jelly-Fish born from the Hydroid stock.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

They swim about for a time, until they have found a resting-place, where they attach themselves, each one founding a Hydroid stock of its own, which will in time produce a new brood of Medusae.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

These various forms are now rightly considered as the successive stages of a development intimately connected in all its parts, -- beginning with the simple Hydroid attached to the ground, and closing in the shape of our common Aurelia, with its white transparent disk, its silky fringe of tentacles around the margin, its ruffled curtains hanging from the mouth, and its four crescent-shaped ovaries grouped to form a cross on the summit.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

At this time the constrictions have deepened, so that the margins of all the successive divisions of the little Hydroid are very prominent, and the whole animal looks like a pile of saucers, or of disks with scalloped edges and the convex side turned downward.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

The proboscis, so characteristic of all Jelly-Fishes, hangs from the central opening; and the tentacles, coiled within the internal cavity up to this time, now make their appearance, and we have a complete little Medusa growing upon the Hydroid head.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

All the Medusas, whether they arise from buds on the Hydroid stock, like the Sarsia, or from transverse division of the Hydroid form, like the Aurelia, or grow directly from the egg to maturity, without pausing in the Hydroid phase, like the Campanella, agree in the general division and relation of parts.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

The entire community is connected at its base by a horny net-work, uniting all the Hydroid stems in its meshes, and spreading over the whole surface on which the colony has established itself.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various

There are other Hydroids giving rise to Medusae buds, from which, however, the Medusae do not separate to begin a new life, but wither on the Hydroid stock, after having come to maturity and dropped their eggs.

The Atlantic Monthly, Volume 10, No. 59, September, 1862 Various