Pogonophora synonyms, pogonophora pronunciation, pogonophora translation, english dictionary definition of pogonophora. Files are available under licenses specified on their description page. The dictionary is now available for purchase in an 8. Pogonophora definition of pogonophora by medical dictionary. Pogonophora archaic a taxonomic class within the phylum annelida various annelid worms that lack a digestive system, now part of siboglinidae. Pogonophora, a genus in the euphorbiaceae disambiguation page providing links to topics that could be referred to by the same search term this disambiguation page lists articles about taxa associated with the same name. The spermatophyta or seedbearing plants constitute a phylum, formerly known as flowering plants or. Definition of phylum pogonophora in the dictionary. In animals inside their tubes, the rate of uptake is limited by the rate of diffusion through the walls of the tube. Length varies from under 10 cm to the 2 to 3 m long riftia pachyptila. The beard wormsa phylum of sedentary marine worms living in cool waters of all the worlds oceans, generally at depths between 330 and,200 ft 100 and 4000 m, shallower at higher latitudes and deeper in trenches.
Pogonophora is a plant genus of the family peraceae first described as a genus in 1854. Frenulate pogonophores are generally long and slender, sedimentliving tubeworms. We plan to scan and post pdfs of these past compilations via the sfs bibliography webpage in the near future. More recently some taxonomists have placed the pogonophorans in the phylum annelida.
They rely on endosymbiotic chemoautotrophic bacteria for nutrition and their anatomy and physiology are adapted. A cladistic analysis of siboglinidae caullery, 1914 polychaeta, annelida. They rely on endosymbiotic chemoautotrophic bacteria for nutrition and their anatomy and physiology are adapted to their need to obtain both oxygen and reduced sulphur compounds. The first species of pogonophore was collected in indonesia in the year 1900. Pogonophoran definition is any of a phylum pogonophora of marine wormlike animals of uncertain systematic relationships that live in chitinous tubes on the floor of deep seas, have obscure segmentation, and lack a mouth and digestive tract. Their name refers to the beardlike mass of pinnate featherlike tentacles borne at the anterior end of many species.
Download academic dictionary of zoology or read online books in pdf, epub, tuebl, and mobi format. Information and translations of pogonophile in the most comprehensive dictionary definitions. This exhaustive dictionary contains over,000 terms relating to invertebrate zoology, including etymologies, word. An exhaustive dictionary of over,000 terms relating to invertebrate zoology, including etymologies, word derivations and taxonomic classification. This exhaustive dictionary contains over,000 terms relating to invertebrate zoology, including etymologies, word derivations and taxonomic classification. While somewhat resembling tubedwelling annelids, it lacked obvious segmentation. Phylum nematomorpha horsehair worms phylum acamhocephala spiny headed worms phylum pogonophora beard worms phylum gnathostomulida sand worms phylum cycliophora cyclwphorans phylum placozoa placozoans phylum. Proper usage and audio pronunciation of the word phylum pogonophora. Users of this and previous annual bibliographic compilations will discern variations in citation style within between sections. Pogonophoran definition and meaning collins english dictionary. Siboglinidae, also known as the beard worms, is a family of polychaete annelid worms whose members made up the former phyla pogonophora the giant tube worms and vestimentifera. The cryptogams, or socalled flowerless plants, are now subdivided into several phyla. Pogonophora beard worms external characteristics very long, slender worms that inhabit a closefitting tube of their own secretion.
They rely on endosymbiotic chemoautotrophic bacteria for nutrition and their anatomy and physiology are adapted to their need to. Pogonophora free download as powerpoint presentation. The latest version 2017 contains a new jump to contents page where one can click to jump to the start of a particular letter. Nematoda roundworms nemertea ribbon worms oligochaeta oligochaetes phoronida horseshoe worms platyhelminthes flatworms polychaeta bristle worms click on an image to select an album. Proper usage and audio pronunciation of the word phylum. Modern crinoidea echinodermata, pogonophora and pterobranch hemichordates evolved from a similar ancestor by retaining the original mode of feeding, perhaps because they continued to inhabit the same environment as occurred in ancestral days. Phylum nematomorpha horsehair worms phylum acamhocephala spiny. Pdf pogonophora, also known as siboglinidae, are tubedwelling marine annelids. Pogonophora article about pogonophora by the free dictionary. Studies on pogonophora journal of experimental biology. This page was last edited on 22 february 2011, at 07.
The beard wormsa phylum of sedentary marine worms living in cool waters of all the worlds oceans, generally at depths between 330 and,200 ft 100 and 4000 m, shallower at higher. In this article we will discuss about phylum pogonophora. Information and translations of pogonophora in the most comprehensive dictionary definitions. All structured data from the file and property namespaces is available under the creative commons cc0 license. Phylum pogonophora definition of phylum pogonophora by the. Weird tube worms of the deepest seas in 1900, a strange tubedwelling worm was dredged from deep waters around indonesia. Others, like the beard worms pogonophora have sticky tentacles that collect planktonic organisms, which are then externally digested. The phylogenetic position of siboglinidae annelida. Beard worms live sedentary lives in long protective tubes on the seafloor worldwide. Information and translations of pogonophora in the most comprehensive dictionary definitions resource on the web. Word and pdf format via the bibliography page on the sfs website see specific access information, below.
Pogonophora definition is a phylum or class of marine worms of uncertain systematic relationships that superficially resemble polychaetes but have a dorsal nervous system and obscure metamerism. Pogonophora means beard bearing, and refers to the fact that many species in this phylum have one. Beard worm, any of a group of polychaetes marine worms constituting the family siboglinidae. They rely on endosymbiotic chemoautotrophic bacteria for nutrition and. All structured data from the file and property namespaces is available under the. Pogonophoran definition of pogonophoran by medical dictionary. Online dictionary of invertebrate zoology download book. Pogonophoran definition of pogonophoran by merriamwebster. The concentration factor reaches a maximum after 30 min. It is native to central africa and northern south america. Pogonophora beard worms phylum pogonophora animal kingdom, animalia, kingdom animalia taxonomic kingdom comprising all living or extinct animals. The spermatophyta or seedbearing plants constitute a phylum, formerly known as flowering plants or phanerogams. Information about phylum pogonophora in the dictionary, synonyms and antonyms. Pogonophoran definition is any of a phylum pogonophora of marine wormlike animals of uncertain systematic relationships that live in chitinous tubes on the floor of deep seas, have obscure.
Pogonophora definition of pogonophora by the free dictionary. Pogonophora, also known as siboglinidae, are tubedwelling marine annelids. Academic dictionary of zoology download ebook pdf, epub. Pogonophora, f a taxonomic genus within the family euphorbiaceae. Information and translations of pogonophile in the most comprehensive dictionary definitions resource on the web. Click download or read online button to get academic dictionary of zoology book now. Click on a title to look inside that book if available. This site is like a library, use search box in the widget to get ebook that you want. Modern crinoidea echinodermata, pogonophora and pterobranch hemichordates evolved from a similar ancestor by retaining the original mode of feeding, perhaps because they continued to inhabit the.
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