Discophora

Definitions

  • Webster's Revised Unabridged Dictionary
    • n. pl Discophora (Zoöl) A division of acalephs or jellyfishes, including most of the large disklike species.
    • ***
Century Dictionary and Cyclopedia
    • discophora The discoidal hydrozoans, a subclass of Hydrozoa, comprising most of the organisms known as jelly-fishes, sea-jellies, or sea-nettles. The latter name is given them from the power they possess, like other hydrozoans, of stinging by means of their thread-cells. The hydrosome consists of a single umbrella-like disk, by the rhythmical contraction of which the creature swims, and from the center of which hangs a single polypite or digestive individual, or, less frequently, several. They are free-swimming oceanic animals, whose body consists of such soft gelatinous substance that a specimen weighing several pounds when alive weighs when dried hardly as many grains. The Discophora include many acalephs, in the usual sense of that term, and are also called Medusæ, Ephyromedusæ, and Acraspeda. They have been divided into Calycozoa (lucernarians), Rhizostomea, and Monostomea. The term Discophora is also restricted to the last two of these, excluding the Lucernarida. Thus, by Claus, the Discophora are made a suborder of Scyphomedusæ, synonymous with Acraspeda, and characterized as disk-shaped acalephs with the margin of the disk 8-lobed, at least 8 submarginal sense-organs, as many ocular lobes, and 4 great cavities in the umbrella for the generative organs. In this strict sense the Discophora correspond to the Discomedusæ (which see). For several wider and inconsistent uses of the term, see the extract.
    • discophora An order of suctorial worms, the leeches: so called from their sucking-disks. See Hiru-dinea.
    • ***
Chambers's Twentieth Century Dictionary
    • n.pl Discophora dis-kof′ō-ra the discoidal hydrozoans—jelly-fishes, &c
    • ***

Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. disk + , to bear
Chambers's Twentieth Century Dictionary
Gr.

Usage

In literature:

The disk of the Discophorae is by no means so delicate as that of the other Jelly-fishes.
"Seaside Studies in Natural History" by Elizabeth Cabot Cary Agassiz
***