Physalia arethusa
Physalia Phy*sa"li*a, n. [NL., fr. Gr. ? a bladder, fr. ? a bellows.] (Zo["o]l.) A genus of large oceanic Siphonophora which includes the Portuguese man-of-war. [1913 Webster]

Note: It has a large air sac, or float, with a sail-like crest on its upper side. Numerous zooids of different kinds are attached to the under side of the float. Some of the zooids have very long tentacles; some have a mouth and digest food; others produce gonophores. The American species ({Physalia arethusa}) is brilliantly colored, the float being pink or purple, and bright blue; the zooids blue. It is noted for its virulent stinging powers, as well as for its beautiful colors, graceful motions, and its ability to sail to windward. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Physalia — Phy*sa li*a, n. [NL., fr. Gr. ? a bladder, fr. ? a bellows.] (Zo[ o]l.) A genus of large oceanic Siphonophora which includes the Portuguese man of war. [1913 Webster] Note: It has a large air sac, or float, with a sail like crest on its upper… …   The Collaborative International Dictionary of English

  • Meeresfauna — 1. Cotylorhiza tuberculata. Qualle. Golf von Neapel. 2. Velella spirans. Röhrenqualle. Golf von Neapel. 3. Physalia arethusa. Röhrenqualle. Golf von Neapel. 1.–3. Von jeder Art mehrere Exemplare. 4. Pelagothuria natatrix. Seegurke. Westküste von… …   Meyers Großes Konversations-Lexikon

  • Сифонофоры — (Siphonophora) отряд класса полипомедуз (см.), или Hydrozoa, типа кишечнополостных (Coelenterata). С., представляющие из себя свободноплавающие полиморфные колонии (см. Колонии) исключительно пелагические морские животные, отличающиеся… …   Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона

  • Galeerenqualle — (Arethusa Brown, Physalia Lam.), Gattung aus der Familie der Blasenquallen, gallertartige, längliche, querliegende, schwimmende Blase, ohne Schwimmhöhlen, mit oben aufsitzendem (als Segel zu gebrauchendem) Kamme, unten mit einer Menge langer,… …   Pierer's Universal-Lexikon

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