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| | lb7pg1 |
 | | To examine the basic body plan, and the feeding, respiratory, circulatory and reproductive systems of the Phylum Annelida. | | | To examine the basic body plan, and the feeding, respiratory, circulatory and reproductive systems of the Phylum Arthropoda. | | | This type of body segmentation is called metamerism. |
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http://io.uwinnipeg.ca/~simmons/lb7pg1.htm
(856 words)
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| | NAB2000 Annelida Bibliography |
| | Martin, P.; Kaygorodova, I.; Sherbakov, D.V.; Verheyen, E. Rapidly evolving lineages impede the resolution of phylogenetic relationships among Clitellata (Annelida). | | | Phylogenetic analysis of Tubificidae (Annelida, Clitellata) based on 18S rDNA sequences. |
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http://www.inhs.uiuc.edu/~mjwetzel/nabs01F.html
(8506 words)
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| | ss9a |
| | Identify the following structures on a cross section of Nereis: parapodia, cuticle, muscles (circular, longitudinal, oblique), coelom, dorsal and ventral blood vessels, ventral nerve cord, intestine. | | | Describe the defining characteristics of the Phylum Annelida, the 2 classes, and the 2 subclasses. |
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http://www.ou.edu/class/invert/ss9a.htm
(189 words)
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| | Tissues And Organs Of Annelida |
| | Your piano may be with you well into the future and it will become like a third arm that you never want to be without! | | | Phylum Annelida (from endocrine system) -- Encyclopædia Britannica - Phylum Annelida (from endocrine system) The cerebral ganglion (brain) of... | | | Looking for information on tissues and organs of annelida, we can help. |
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http://www.pianothings.com/tissues-and-organs-of-annelida.html
(794 words)
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| | Polychaete References |
| | A fire worm with a sheltered life: Studies of Benthoscolex cubanus Hartman (Amphinomidae), an internal associate of the bathyal sea-urchin Archeopneustes hystrix (A. Agassiz 1880). | | | Wolf, P.S. Aberrantidae: A new family of Polychaeta (Annelida). | | | Imajima, M. Spionidae (Annelida, Polychaeta) from Japan, 6. |
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http://www.nhm.org/guana/bvi-invt/bvi-surv/ref-poly.htm
(5208 words)
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| | WormNet grant |
| | Understanding metazoan phylogeny has been confounded by interpretations of the degree and nature of segmentation in body plans. | | | The proposed work has two goals: 1) Genomic approaches will be used to reconstruct the early phylogenetic events of the "Annelida", which includes several previously recognized phyla, and 2) Functional genomic techniques will be used to characterize the developmental mechanisms employed in segmentation in several key lineages. | | | Recent evidence suggests that several non-segmented or partially segmented worm taxa, that were previously regarded as separate phyla, are within the annelid radiation. |
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http://www.auburn.edu/academic/science_math/biology/faculty/halanych/wormnet.html
(345 words)
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| | Amazon.ca: Books: Microscopic Anatomy of Invertebrates, Volume 7, Annelida |
| | It does not remain limited to fundamental descriptions of anatomical structure but rather goes beyond that level to offer a compelling view of microscopic anatomy that relates structure to function in various organisms. | | | Look for books like Microscopic Anatomy of Invertebrates, Volume 7, Annelida by subject: | | | Use Your Account to view or change your orders |
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http://www.amazon.ca/exec/obidos/ASIN/0471561142
(256 words)
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| | Colgate University Biology Department - Damhnait McHugh |
| | In fact, my data indicate that the deep-sea hot vent tube worms and the unsegmented, mud-dwelling echiurids — both groups that have been considered as separate, independent evolutionary lineages — are actually derived annelids with bizarre body forms. | | | , showed that the Annelida we traditionally define is not a natural group that includes all the descendents from the original annelid ancestor. | | | McHugh, D. (1999) Phylogeny of the Annelida: Siddall et al. |
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http://departments.colgate.edu/biology/people/DMcHugh.html
(1219 words)
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| | Characteristics of Annelida: Plesiomorphies and Other Features |
| | Annelids also have a variety of epidermal sensory cells that may be responsive to light or touch (such as lateral organs). | | | This has been challenged by other authors who suggest that nuchal organs may be an apomorphy for Annelida as a whole and have been lost in Clitellata/Oligochaeta (Purschke et al., 2000). | | | They are present in nearly all polychaetes, and Rouse and Fauchald (1997) suggested that they may represent an apomorphy for Polychaeta. |
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http://tolweb.org/accessory/Characteristics_of_Annelida?acc_id=57
(1080 words)
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| | Annelida |
| | Molecular Evidence that Sclerolinum brattstromi Is Closely Related to Vestimentiferans, not to Frenulate Pogonophorans (Siboglinidae, Annelida). | | | Annelida: Annelid Characteristics - Annelid Characteristics Segmented Bodies The fundamental characteristic of the phylum is the... | | | Asexual Reproduction in Pygospic elegans C1aparede (Annelida, Polychaeta) in Relation to Parasitism by Lepocreadium setiferides (Miller and Northup) (Platyhelminthes, Trematoda). |
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http://www.infoplease.com/ce6/sci/A0804124.html
(299 words)
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| | The Annelids (Phylum Annelida) |
| | The Phylum Annelida is divided into 3 classes, one of which the Clitellata could really be called a Superclass, it contains three subclasses, the Oligochaeta, the Branchiobdella and the Hirundinea. | | | Like the classification of all living things the classification of the Annelida is under revision by experts and the current beliefs of scientists are only theories not facts, different schemes may be put forward as we acquire more knowledge. | | | Like the Oligochaeta from which they are believed to have evolved the Hirundinea occur in Fresh water, marine and terrestrial environments. |
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http://www.earthlife.net/inverts/annelida.html
(1765 words)
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| | Annelid - Wikipedia, the free encyclopedia |
| | They are found in most wet environments, and include many terrestrial, freshwater, and especially marine species (such as the often gorgeous polychaetes), as well as some which are parasitic or mutualistic. | | | The annelids, collectively called Annelida (from Latin annellus "little ring"), are a large phylum of animals, comprising the segmented worms, with about 15 000 modern species including the well-known earthworms and leeches. |
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http://en.wikipedia.org/wiki/Annelida
(966 words)
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| | annelida |
| | Fig 1 A phylogeny of Bilateria showing the relationships of Annelida. | | | Fig 13a A phylogeny of Bilateria showing the relationships of Protostomia. |
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http://www.lander.edu/rsfox/310annelid1Lec.html
(2521 words)
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| | Phylum Annelida |
| | Other hallmarks of the annelids are soft bodies that are round in cross section, repetition of organs in the segemented parts, and a body that is much longer than it is wide. | | | Below is a list of the phylum Annelida, with each class and the orders of each class (some of these classes, making up a very minor portion of the phylum, have not been described): | | | Therefore, because a segmented body is advantageous, it evolved twice, with the protosomes, as shown by phyla Annelida and Arthropoda, and again in the deuterosomes, as shown by phylum Chordata. |
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http://www.sidwell.edu/us/science/vlb5/Labs/Classification_Lab/Eukarya/Animalia/Annelida
(261 words)
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| | Annelida (from circulation) -- Encyclopædia Britannica |
| | While some small segmented worms of the phylum Annelida have no separate circulatory system, most have a well-developed closed system. | | | More results on "Annelida (from circulation)" when you join. | | | Includes information on the fossil record, life history and ecology, systematics, and morphology. |
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http://www.britannica.com/eb/article-33700?tocId=33700
(829 words)
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| | INHS Annelida Collection (main) |
| | I also acknowledge our colleagues around the world for regularly sending me reprints of their papers focusing on the Annelida. | | | Illinois species now deposited in the INHS Annelida Collection include 3 aphanoneurans (1 family, 1 genus), 9 branchiobdellidans (3 families, 6 genera), 86 aquatic or semiaquatic oligochaetes (7 families, 45 genera), 32 leeches (4 families, 19 genera), and at least 22 terrestrial oligochaetes (3 families, 10 genera). | | | The material in this collection, comprised of 1,600 earthworm specimens representing 22 species, 10 genera, and 3 families, was collected by Dr. Harman from 230 sites in central Illinois during his 1956-1958 survey for his doctoral work at the University of Illinois. |
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http://www.inhs.uiuc.edu/~mjwetzel/INHS.AnnelColl.html
(935 words)
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| | Nearctica - Natural History - Annelida |
| | The phylum Annelida are defined by being externally segmented, wormlike, and have bristles (setae), although the setae may be greatly reduced in the earthworms and leeches. | | | A great introduction to the annelids including information on their morphology, ecology, life histories, systematics, and fossil record. | | | You can also find links to other annelid sites here. |
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http://www.nearctica.com/nathist/miscanim/worm.htm
(375 words)
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| | Best Book Buys - Annelida Books |
| | Books > Browse > Subject Category > Science > Life Sciences / Zoology / General > Annelida | | | Subject Category > Science > Life Sciences / Zoology / General > Annelida |
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http://www.bestwebbuys.com/Zoology-General-N_10038839-books.html
(127 words)
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| | Halanych Lab Personnel |
| | Phylogeny of Eunicida (Annelida) and Exploring Data Congruence using a Partition Addition Bootstrap Alteration (PABA) approach. | | | Dinophilidae (Annelida) is not a progenetic Eunicida; Evidence from 18S and 28S rDNA. | | | Holopelagic Poeobius meseres (Poeobiidae, Annelida) is derived from within benthic Flabelligerid worms. |
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http://www.auburn.edu/academic/science_math/biology/faculty/halanych/Struck.htm
(594 words)
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| | Annelida |
| | Since many segments are similar to other segments in form and function, damage to one or several segments does not necessarily compromise body functions. | | | There are three major classes within the phylum Annelida, described below. | | | Class Polychaeta - mostly marine worms, such as Nereis (the clamworm) |
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http://www.esu.edu/~milewski/intro_biol_two/lab__12_annel_arthro/Annelida.html
(1240 words)
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| | Annelida: Earthworm |
| | Purpose: The purpose of this lab is to introduce the student to the organ systems and body plan of an earthworm, a representative of the phylum Annelida. | | | The drawings shown below illustrate key features of the earthworm "systems." Based on these diagrams and your observations of the slides and preserved specimens, complete the table below. | | | Materials and Methods: This lab requires preserved earthworms, xs slides of the earthworm, dissection pins and trays, microscopes (compound and dissection), and lens paper. |
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http://faculty.southwest.tn.edu/jiwilliams/earthworm.htm
(121 words)
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| | BiologyBrowser: Organism Resources and Links |
| | BIOSIS is committed to providing researchers with efficient, comprehensive databases for locating the life sciences information they need | | | Aphanoneuran and clitellate Annelida occurring in the United States and Canada | | | An open public mailing list for discussion of whole-organism research into Phylum Annelida and allied groups. |
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http://www.biologybrowser.org/bb/Organism/Invertebrata/Annelida/index.shtml
(152 words)
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| | Oceanlink marine sciences education and fun |
| | A: This is quite an interesting question, and needs some background first for those who may be unfamiliar with the genus of worms known as Amphitrite. | | | However, they are in different classes - earthworms are in the class Oligochaeta, while Amphitrite are in the class Polychaeta. | | | The common earthworm (for example, the genus Lumbricus) and the worms in the genus Amphitrite are both in the Phylum Annelida (segmented worms). |
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http://oceanlink.island.net/ask/annelida.html
(1828 words)
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| | annelida |
| | Posesses parapodia (L.para=side, podia=foot) which are fleshy lobes on each segment that are supported by acicula (chitinous rods) to which the muscles are attached (like a skeleton) | | | Phylum Annelida really good site link with diagrams photos etc | | | All notes and diagrams are reproduced here courtesy of Dr Jamie Seymour JCU Cairns Australia. |
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http://www.cairnslink.com.au/worms.html
(893 words)
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| | Search: segmented worm |
| | Segmented worm phylum (Annelida) Toxicity Studies - Toxicology studies | | | These segmented worms are among the most common marine organisms, and can be found | | | Tip: In most browsers you can just hit the return key instead of clicking on the search button. |
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http://www.angelfire.com/ab8/too4/searchb929.html
(220 words)
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| | Systematics of the Annelida |
| | Two phyla that are probably close relatives of the Annelida, the Pogonophora (beardworms) and Echiura (spoon worms) are very rare as fossils, but all three groups belong to the larger group Trochozoa. | | | Most are members of the meiofauna, the assemblage of microscopic animals and protists found living among sediment grains. |
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http://www.ucmp.berkeley.edu/annelida/annelidasy.html
(210 words)
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| | Introduction to the Annelida |
| | There are about 9000 species of annelid known today. | | | It also includes subscription information on the ANNELIDA e-mailing list. | | | An Annelid Worm Biodiversity List is available, with links to a large number of annelid-related resources of all sorts. |
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http://www.ucmp.berkeley.edu/annelida/annelida.html
(164 words)
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| | ANNELIDA |
| | Report upon the Annelida Polychaeta of Beaufort, North Carolina. |
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http://www.mbl.edu/BiologicalBulletin/EGGCOMP/pages/38.html
(1222 words)
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| | ANNELIDA |
| | GRAVE, B. Rate of growth, age at sexual maturity, and duration of life of certain sessile organisms, at Woods Hole, Massachusetts. | | | Electron microscope studies of the egg surfaces and membranes of Hydroides hexagonus (Annelida) and Saccoglossus kowalevskii (Enteropneusta). | | | Sperm entry in Hydroides hexagonus (Annelida) and Saccoglossus kowalevski (Enteropneusta). |
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http://www.mbl.edu/BiologicalBulletin/EGGCOMP/pages/40.html
(1600 words)
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| | Life Science Safari - Annelid Phylum |
| | The tube-shaped bodies of all segmented worms are divided into many little sections. | | | Their tunnels add air and their waste is fertilizer. | | | The night crawlers you use for fishing and the worm on your driveway after a hard rain belong to Phylum Annelida (uh NEL ud uh), the segmented worms. |
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http://vilenski.org/science/safari/animals/annelids
(134 words)
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| | Thomson BIOSIS - Annelida |
| | Support : Thesaurus Used in Zoological Record : Systematic Hierarchy - Full : Annelida |
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http://www.biosis.org/support/zr-thesaurus/sys-full/annelida
(22 words)
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| | Annelida |
| | ZOO 137 - Invertebrate Zoology Phylum Info File - Annelida |
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http://www.csupomona.edu/~jomleong/classes/Zoo137/labpartb/annelida.html
(323 words)
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| | Phylum Annelida |
| | Annelida: "segmented worms" -- earthworms, bristleworms and leeches |
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http://www.indiana.edu/~q201bio/labs/lab5/annelida.htm
(137 words)
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