Scientific classification
Kingdom: Chromalveolata
Division: Heterokontophyta
Class: Opalinea
Order: Opalinida
Family: Opalinidae
Genus: Opalina
Purkinye & Valentin, 1835

Opalina (so named by J. E. Purkinje and G. Valentin), is a genus of Protozoa found in the intestines of frogs and toads. It is without a mouth or contractile vacuole, covered with nearly equal flagelliform cilia, and possessing numerous nuclei, all similar. All the species are obligate endosymbionts, most likely commensal, improbably parasitic, in cold-blooded vertebrates. Its body is leaf like. Cytostome is absent and nutrition is saprozoic, suggestive of its commensal role.

An example of a species is Opalina ranarum.[1]

Opalina is a girl's name of Indian / Hindu origin and means a Precious Stone. Taken from opal (a semiprecious gemstone which reflects light in a dazzling display of colors), which is ultimately derived from the Sanskrit word upala (precious stone, jewel). Variations of this name include Opal, Opale, Opala, Opalah, Opalia, Opaline, Opalyn, Opalyna, Opalynah, Opalyne.


 This article incorporates text from a publication now in the public domainChisholm, Hugh, ed (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press. 

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Look at other dictionaries:

  • Opalīna — Opalīna, s. Infusorien, S. 828 …   Meyers Großes Konversations-Lexikon

  • Opalina — Opalīna, im Darm anderer Tiere lebende Wimperinfusoriengattg. aus der Ordnung der Holotrichen, ohne Mund und After; O. ranarum Stein [Abb. 1290], im Mastdarm der Frösche …   Kleines Konversations-Lexikon

  • opalina — o·pa·lì·na s.f. 1. TS industr. tipo di vetro traslucido, la cui opalescenza è dovuta alla diversità degli indici di rifrazione fra vetro e diverse sostanze incolori, alla formazione di bollicine gassose o a fenomeni di devetrificazione | CO… …   Dizionario italiano

  • Opalina — A genus of parasitic protozoans found in the guts of frogs and toads. They look superficially like ciliates, but are classified in a separate group as they have a number of similar nuclei …   Dictionary of molecular biology

  • opalina — ► sustantivo femenino ARTES DECORATIVAS Sustancia vítrea que imita el ópalo y se utiliza en la fabricación de objetos artísticos …   Enciclopedia Universal

  • Opalina — Opa·li·na (o″pə liґnə) [L. opalus opal] a genus of ciliate parasitic protozoa (order Opalinida, class Opalinatea) found as endocommensals in the colon of frogs and toads. The life cycle of O. ranaґrum involves asexual reproduction …   Medical dictionary

  • opalina — o|pa|li|na Mot Pla Nom femení …   Diccionari Català-Català

  • opalina — {{hw}}{{opalina}}{{/hw}}s. f. 1 Tipo di vetro opalescente. 2 Tipo di cartoncino lucido. 3 Stoffa di cotone leggera e semitrasparente …   Enciclopedia di italiano

  • opalina — pl.f. opaline …   Dizionario dei sinonimi e contrari

  • opalina — opa·li·na …   English syllables

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