attached operculum

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• Operculum (gastropod) — Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place …   Wikipedia

• operculum — 1. Anything resembling a lid or cover. 2. [TA] In anatomy, the portions of the frontal (o. frontale [TA], frontal o. [TA]), parietal (o. parietale [TA], parietal o. [TA]), and temporal (o. temporale [TA], temporal o. [TA]) lobes bordering the… …   Medical dictionary

• Bryopsida — Taxobox name = Bryopsida image width = 240px image caption = Arthrodontous capsule of Dicranella varia regnum = Plantae divisio = Bryophyta classis = Bryopsida subdivision ranks = Subclasses subdivision = Diphysciidae Funariidae Dicranidae… …   Wikipedia

• Peristome — The word peristome is derived from the Greek peri, meaning around or about , and stoma, mouth . It is a term used to describe various anatomical features that surround an opening to an organ or structure. The term is used in plants and… …   Wikipedia

• bryophyte — bryophytic /bruy euh fit ik/, adj. /bruy euh fuyt /, n. Bot. any of the Bryophyta, a phylum of nonvascular plants comprising the true mosses and liverworts. [1875 80; < NL Bryophyta name of the group; see BRYO , PHYTE] * * * Any of the green,… …   Universalium

• fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …   Universalium

• Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …   Universalium

• gastropod — /gas treuh pod /, n. 1. any mollusk of the class Gastropoda, comprising the snails, whelks, slugs, etc. adj. 2. Also, gastropodous /ga strop euh deuhs/. belonging or pertaining to the gastropods. [1820 30; < NL Gast(e)ropoda a class of mollusks.… …   Universalium

• Beak — For other uses, see Beak (disambiguation). Comparison of bird beaks, displaying different shapes adapted to different feeding methods. Not to scale. The beak, bill or rostrum is an external anatomical structure of birds which is used for eating… …   Wikipedia

• Head louse — This article is about the animal. For the disease known as head lice, see Pediculosis capitis. Head lice Scientific classification Kingdom: Animalia …   Wikipedia

• Ichthyology terms — Ichthyology uses several terms that are unique to the science.Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z NOTOC A * Abdomen: belly * Abdominal: pertaining to the belly * Actinosts: a series of bones at the base of the pectoral… …   Wikipedia