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Flabesymbios Commensalis
''Flabesymbios commensalis'' is a species of marine worm that lives in sea urchin spikes. According to recent research, ''F. commensalis'' has a two-color body and lives on urchins in the genus ''Strongylocentrotus ''Strongylocentrotus'' is a genus of sea urchins in the family Strongylocentrotidae The Strongylocentrotidae are a family (biology), family of sea urchins in the order (biology), order Camarodonta. Genera References Strongylocentroti ...''. It has been found along the Pacific coast of North America. References Animals described in 1909 Annelids of the Pacific Ocean Terebellida {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Percy Moore
John Percy Moore (1869–1965) was an American zoologist who specialized in the research of leeches. Biography Born in Williamsport, Pennsylvania in 1869, Moore was educated at the Central High School of Philadelphia, where he received his Bachelor of Arts degree in 1886. A student at the University of Pennsylvania, he obtained his Bachelor of Science degree there in 1892 and his Doctor of Philosophy in 1896. After 1890, he was repeatedly employed by the United States Fish Commission. An instructor in biology at the Hahnemann Medical College from 1896 to 1898, he served as an instructor in zoology at the Marine Biological Laboratory in Woods Hole, Mass after 1901. An instructor in zoology at Penn from 1892 to 1907, he served as an assistant professor from 1907 to 1909, and was then appointed as a professor. In 1902, he became assistant curator of the Academy of Natural Sciences in Philadelphia and worked for many years with Witmer Stone. He was elected to the American Philosophica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spine (zoology), spiny protective test (biology), tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessility (motility), sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their Echinoderm#Larval development, pluteus larvae featuring Bilateral symmetry, bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strongylocentrotus
''Strongylocentrotus'' is a genus of sea urchins in the family Strongylocentrotidae The Strongylocentrotidae are a family (biology), family of sea urchins in the order (biology), order Camarodonta. Genera References Strongylocentrotidae, Echinoderm families {{echinoidea-stub ... containing several species. Species The World Register of Marine Species includes: See also * '' Flabesymbios commensalis'' References External links The sea urchin ''Strongylocentrotus purpuratus'' genomic data basefrom California Institute of Technology Echinoidea genera {{Echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animals Described In 1909
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia (). With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million living animal species have been described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology. The animal kingdom is divided into five major clades, namely Porifera, Ctenophora, Placozoa, Cni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelids Of The Pacific Ocean
The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of poly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
