|
Diplocardia Meansi
''Diplocardia meansi'', Means's Giant Earthworm, or Rich Mountain Giant Earthworm, is a species of earthworm endemic to the United States. It is the second longest earthworm in North America. It was discovered by D. Bruce Means on June 11, 1973 in Polk County, Arkansas. and later described by Gates in 1977. It occurs only on Rich Mountain, part of the Ouachita Mountains. Description ''Diplocardia meansi'' only occurs on Rich Mountain, located in Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ... and Arkansas. ''D. meansi'' was found by Means while digging for salamanders on Rich Mountain. ''D. meansi'' can be over 18 inches, and is the second longest earthworm in North America. ''D. meansi'' inhabits drier areas of the mountain, and is not found in mesic and satur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gordon Enoch Gates
Gordon Enoch Gates (11 January 1897 – 11 June 1987) was an American zoologist. Biography Gates was born in Warner, New Hampshire, in 1897. He graduated from Colby College in 1919. From 1921 to 1941, he served as the head of Biology Department at Judson College in Burma. Then, from 1941 to 1946 he became a professor of biology at Rangoon College '') , mottoeng = There's no friend like wisdom. , established = , type = Public , rector = Dr. Tin Mg Tun , undergrad = 4194 , postgrad = 5748 , city = Kamayut 11041, Yangon , state = Yangon Regio .... he was a fellow at Museum of Comparative Zoology from 1946 to 1947, followed by being a Professor of Biology at Colby College from 1948 to 1950. He then became a guggenheim fellow from 1951 to 1952. His main focus was the morphology, physiology, taxonomy, and zoogeography of earthworms, a collection of which he donated to the National Museum of Natural History. He retired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five major unincorporated territories, nine United States Minor Outlying Islands, Minor Outlying Islands, and 326 Indian reservations. The United States is also in Compact of Free Association, free association with three Oceania, Pacific Island Sovereign state, sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Palau, Republic of Palau. It is the world's List of countries and dependencies by area, third-largest country by both land and total area. It shares land borders Canada–United States border, with Canada to its north and Mexico–United States border, with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polk County, Arkansas
Polk County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 20,662. The county seat is Mena. Polk County is Arkansas's 48th county, formed on November 30, 1844; it was named for James K. Polk, 11th President of the United States. Wet County Formerly an alcohol prohibition or dry county. However, following a historic mid-term election, Polk County is now a wet county. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.6%) is water. Major highways * Future Interstate 49 * U.S. Highway 59 * U.S. Highway 71 * U.S. Highway 270 * U.S. Highway 278 * Highway 4 * Highway 8 * Highway 84 * Highway 88 Adjacent counties * Scott County (north) *Montgomery County (east) * Howard County (southeast) * Sevier County (south) * McCurtain County, Oklahoma (southwest) * Le Flore County, Oklahoma (northwest) National protected area * Ouachita National Forest (part) Demographics 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rich Mountain (Arkansas–Oklahoma)
Rich Mountain is the second highest point of the U.S. Interior Highlands and Ouachita Mountains, and in the U.S. state of Arkansas; it is also the site of Queen Wilhelmina State Park. Rich Mountain is a long, generally east–west-trending ridge composed of hard sandstone. It is located just outside of Mena, Arkansas and is intersected by the Arkansas-Oklahoma border. Atop its summit is the Rich Mountain Lookout Tower, which is approximately east-southeast of the Queen Wilhelmina Lodge. Arkansas State Highway 88 and Oklahoma State Highway 1, collectively known as the Talimena Scenic Drive, traverse the entire top of Rich Mountain and provide excellent vistas of the surrounding Ouachita Mountains The Ouachita Mountains (), simply referred to as the Ouachitas, are a mountain range in western Arkansas and southeastern Oklahoma. They are formed by a thick succession of highly deformed Paleozoic strata constituting the Ouachita Fold and Thr .... References Ouachita Moun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ouachita Mountains
The Ouachita Mountains (), simply referred to as the Ouachitas, are a mountain range in western Arkansas and southeastern Oklahoma. They are formed by a thick succession of highly deformed Paleozoic strata constituting the Ouachita Fold and Thrust Belt, one of the important orogenic belts of North America. The Ouachitas continue in the subsurface to the northeast, where they make a poorly understood connection with the Appalachians and to the southwest, where they join with the Marathon uplift area of West Texas. Together with the Ozark Plateaus, the Ouachitas form the U.S. Interior Highlands. The highest natural point is Mount Magazine at . The Ouachita Mountains is a Level III ecoregion designated by the Environmental Protection Agency (EPA). The region has been subdivided into six Level IV ecoregions. Etymology Louis R. Harlan claimed that "Ouachita" is composed of the Choctaw words ''ouac'' for "buffalo" and ''chito'' for "large", together meaning "country of large bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the north, Missouri on the northeast, Arkansas on the east, New Mexico on the west, and Colorado on the northwest. Partially in the western extreme of the Upland South, it is the List of U.S. states and territories by area, 20th-most extensive and the List of U.S. states and territories by population, 28th-most populous of the 50 United States. Its residents are known as Oklahomans and its capital and largest city is Oklahoma City. The state's name is derived from the Choctaw language, Choctaw words , 'people' and , which translates as 'red'. Oklahoma is also known informally by its List of U.S. state and territory nicknames, nickname, "Sooners, The Sooner State", in reference to the settlers who staked their claims on land before the official op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arkansas
Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage language, a Dhegiha Siouan language, and referred to their relatives, the Quapaw people. The state's diverse geography ranges from the mountainous regions of the Ozark and Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 29th largest by area and the 34th most populous state, with a population of just over 3 million at the 2020 census. The capital and most populous city is Little Rock, in the central part of the state, a hub for transportation, business, culture, and government. The northwestern corner of the state, including the Fayetteville� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplocardia Longa
''Diplocardia longa'' is a species of earthworm native to North America. It was first described by the American zoologist John Percy Moore in 1904. The type locality is Hawkinsville, Georgia. This worm has bioluminescent properties; its body fluids and the sticky slime it exudes when stimulated emit a bluish glow. Description ''Diplocardia longa'' can grow to a length of about when moderately extended and a diameter of at segment 7 and behind the clitellum. The number of segments varies between about 270 and 330. It is slender and cylindrical, slightly tapering at both ends. At the posterior end it swells slightly into a club-shape before narrowing to the anal opening. The two ends of the worm are brown, the clitellum reddish-brown and the rest of the body is a rather dull salmon pink. The skin is translucent and the veins can be seen distinctly in the less-pigmented regions. Bioluminescence This worm produces bioluminescent mucus, its family Acanthodrilidae being one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelomic Fluid
The coelom (or celom) is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs. In some animals, it is lined with mesothelium. In other animals, such as molluscs, it remains undifferentiated. In the past, and for practical purposes, coelom characteristics have been used to classify bilaterian animal phyla into informal groups. Etymology The term ''coelom'' derives from the Ancient Greek word (), meaning 'cavity'. Structure Development The coelom is the mesodermally lined cavity between the gut and the outer body wall. During the development of the embryo, coelom formation begins in the gastrulation stage. The developing digestive tube of an embryo forms as a blind pouch called the archenteron. In Protostomes, the coelom forms by a process known as schizocoely. The archenteron initially forms, and the mesoderm splits into two layers: the first attaches to the body wall or ectoderm, fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitellata
The Clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles. The clitellates comprise around 8,000 species. Unlike the class of Polychaeta, they do not have parapodia and their heads are less developed. Characteristics Clitellate annelids are segmented worms characterised by the clitellum or girdle which is located near the head end of mature individuals. The mouth is on the ventral surface and is overhung by the prostomium (proboscis). The brain is not located in the head but in one of the body segments. The clitellum is formed by a modification of several segments, and either includes the female gonopores or is located just behind them. During copulation, this glandular tissue secretes mucus that keeps the paired individuals together while they exchange sperm. Afterwards it secretes material that forms a cocoon that encircles the animal's body and encloses the eggs and spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> North America")
