Biology

Introduction to the Sipuncula Introduction to the Sipuncula- Introduction to the peanut worms, from UCMP Berkeley. Rotifera Rotifera- Photographs and references from the Tree of Life Web Project. Rotifers: The Wheel Animalcules Rotifers: The Wheel Animalcules- Introduction to this phylum from UCMP Berkeley. Collotheca Collotheca- Photographs and information on this genus of freshwater rotifers. Fresh Water Rotifers Fresh Water Rotifers- Provides an introduction to rotifers with photomicrographs of bdelloid rotifers. Rotifera in Bromeliad Phytotelmata Rotifera in Bromeliad Phytotelmata- List and description of rotifers associated with bromeliads in Jamaica. Microbe Movie Stars: The Rotifer Brachionus Microbe Movie Stars: The Rotifer Brachionus- Animated gif of this small, multicellular organism, with an explanation of the function of the features seen. Microbe Movie Stars: The Rotifer Limnias Microbe Movie Stars: The Rotifer Limnias- Animated gif of this small, multicellular organism, with an explanation of the function of the features seen. Welcome to the Wonderfully Weird World of Rotifers Welcome to the Wonderfully Weird World of Rotifers- Article by Richard L. Howey introducing these organisms with a gallery of fine images. The Fascinating World of Rotifers The Fascinating World of Rotifers- Article by Jean-Marie Cavanihac on these creatures with many photographs, some of them animated. Trehalose and Suspended Animation Trehalose and Suspended Animation- Article by Hugo Baillie-Johnson on a mechanism adopted by some creatures to enable them to withstand severe conditions such as dessication, with… Video Gallery: A Rotifer Sequence Video Gallery: A Rotifer Sequence- Photographic study by Dave Walker of the fascinating Collotheca specimen he found when looking for something else. An Interactive Rotifer An Interactive Rotifer- Information on the sessile rotifer Collotheca with an interesting mouse-over image. Conochilus Conochilus- Photographic study by Wim van Egmond of this colonial rotifer. Floscularia Floscularia- Photographic study by Martin Mach of this tube-dwelling rotifer Rotifers Rotifers- Stunning photographs and descriptions of rotifers by Wim van Egmond. Digital Video Gallery: Pond Life Digital Video Gallery: Pond Life- Includes multiple videos of 10 genera of Rotifera, along with many species of Protozoans, Algae, and other organisms. Keratella Rotifers Keratella Rotifers- Photographs, bibliographic information and technical details about genus Keratella. The Good, the Bad, and the Ugly The Good, the Bad, and the Ugly- Photographs of a rotifer and her eggs being predated by protozoa. Life in a Drop of Water Life in a Drop of Water- Article by Mike Morgan in Micscape magazine on rotifers, with several photographs of British specimens. The Rotifer Jaw: Brachionus The Rotifer Jaw: Brachionus- Photographic article on the constituent parts of the jaws of this species. Jaws Jaws- Article by Ken Jones and Maurice Smith on the feeding mechanisms of various rotifers, and of the pleasure of observing these and other organisms under the microscope. Rotifers and How to Find Them Rotifers and How to Find Them- Roy Winsby's article from Micscape Magazine. Rotifera Rotifera- Lots of great rotifer pictures and references. Observing a Rotifer Birth Observing a Rotifer Birth- A lucky amateur microscopist captured the birth of a rotifer on film! Wikipedia: Rhombozoa Wikipedia: Rhombozoa- Encyclopedia article on these tiny parasites that live in the renal appendages of cephalopods including their anatomy and life cycle. Introduction to the "Aschelminth" Phyla Introduction to the "Aschelminth" Phyla- Berkeley's introduction to the pseudocoelomate or "Aschelminth" group of phyla. Phylum Porifera (Sponges) Phylum Porifera (Sponges)- Description of the sponges and their taxonomy, from the Animal Diversity Web. Sponges of Northern California Fouling Communities Sponges of Northern California Fouling Communities- Gallery of photographs of a number of species. Porifera List Porifera List- Links to a number of sponge-related sites. Nonindigenous Aquatic Species: Sponges Nonindigenous Aquatic Species: Sponges- Species list from the USGS on the nonindigenous sponges found in US waters, with factsheets and collection details. Porifera Biology on the WWW Porifera Biology on the WWW- A central clearinghouse for sponge researchers, including a porifera listserver bulletin board and who's who in sponge research. Sponge City Sponge City- Article by William Amos on sponges and their general biology, and the pistol shrimp and other creatures that live inside their chambers. Hermit Crab Sponges Hermit Crab Sponges- An article by Floyd Sandford about the sponges that are carried around by hermit crabs. Introduction to Porifera Introduction to Porifera- A good start on the biology of sponges, including phylogeny, life history, and ecology. Phylum Platyhelminthes Phylum Platyhelminthes- An introduction to the phylum with more pages about the Turbellaria, Monogenea, Digenea and Cestoda, from Animal Diversity Web. Metagonimiasis Metagonimiasis- Information on the minute intestinal fluke, Metagonimus yokogawai, which can parasitize the human gut, and a diagram and information on its life cycle. Schistosomiasis Schistosomiasis- Information on the digenetic blood trematodes of the genus Schistosoma which can infect humans, and a diagram and information on their complex life cycle. Flatworm: Procotyla fluviatilis Flatworm: Procotyla fluviatilis- Photographs and information on these organisms. Platyhelminthes: Flatworms, Tapeworms, Flukes Platyhelminthes: Flatworms, Tapeworms, Flukes- Much information on the flatworms and the characteristics that distinguish them from other worm-like creatures, with photographs and… Flatworms: British Marine Life Study Society Flatworms: British Marine Life Study Society- One page about a planarian and one page about the life cycle of the digenean Cryptocotyle lingua, with a few photographs. Fredrick the Flatworm Fredrick the Flatworm- Information and images of different types of Platyhelminthes (flatworms). [Javascript required] Introduction to the Platyhelminthes Introduction to the Platyhelminthes- Introduction to the Platyhelminthes, the flatworms: life in two dimensions. One page of text with a few photographs. Introduction to Placozoa Introduction to Placozoa- Information and a photograph of these strange organisms which have never been observed in their natural habitat. Trichoplax Trichoplax- Information from Wikipedia on this genus of simple marine organisms, with a photograph. A Weird Wee Beastie: Trichoplax adhaerens A Weird Wee Beastie: Trichoplax adhaerens- Article by Richard Howey on this organism which is considered to be the most primitive multi-cellular animal known. Phoronida Phoronida- Illustration of the internal anatomy of a horseshoe worm and a list of species. Introduction to the Phoronida Introduction to the Phoronida- Introduction to the Phoronida, a small phylum related to brachiopods and bryozoans. Phoronida Phoronida- Geographical distribution, systematics (including relationship to other lophophorates), list of species, scientific papers, links. Site is in English, Spanish, and Fren… Introduction to the Onychophora Introduction to the Onychophora- The Onychophora, or velvet worms: introduction, systematics, fossil history, morphology and ecology.