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Eudrilidae
The Eudrilidae are a family of earthworms, mostly of Africa. One species, ''Eudrilus eugeniae'' (Kinberg, 1867), is widely distributed around the warmer parts of the world and historically cultured as the "African nightcrawler".Blakemore (2015). - http://africaninvertebrates.org/ojs/index.php/AI/article/view/395 The male pores of eudrilids are in segment 17, as is also typical of Ocnerodrilidae. Eudrilids differ from the family Megascolecidae and Acanthodrilidae in having euprostates, i.e., a muscular and possibly glandular development of the vasa deferentia (male ducts from testes) that open to the male pores. Eudrilids further differ from megascolecids, and ocnerodrilids in the development of internal fertilisation Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ... with the eq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthworm
An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tube-within-a-tube body plan; they are externally segmented with corresponding internal segmentation; and they usually have setae on all segments. They occur worldwide where soil, water, and temperature allow. Earthworms are commonly found in soil, eating a wide variety of organic matter. This organic matter includes plant matter, living protozoa, rotifers, nematodes, bacteria, fungi, and other microorganisms. An earthworm's digestive system runs the length of its body. An earthworm respires (breathes) through its skin. It has a double transport system made of coelomic fluid that moves within the fluid-filled coelom and a simple, closed circulatory system. It has a central and peripheral nervous system. Its central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve running along its length to motor neurons and sensory cells in e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eudrilus Eugeniae
''Eudrilus eugeniae'', also called the "African Nightcrawler", is an earthworm species native to tropical west Africa and now widespread in warm regions under vermicompost; it is an excellent source of protein and has great pharmaceutical potential. Growth Fecundity, growth, maturation and biomass production were all significantly greater at 25 °C than 15°, 20°or 30°. The growth of individual earthworms increases as the population density lowers, but the greatest overall earthworm biomass production occurs at the highest population density. The greatest number of cocoons per week and the number of hatchlings per cocoon are obtained at 25 °C. Cocoons of ''E. eugeniae'' hatched in only 12 days at 25 °C, and the worms reach sexual maturity in as little as 35 days after hatching. Etymology Named after Johan Gustaf Hjalmar Kinberg's Swedish survey ship, the ‘Eugenie’. Life cycle Throughout its life cycle, ''E. eugeniae'' grows much more rapidly than ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, Scramble for Africa, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocnerodrilidae
''Ocnerodrilidae'' is a family of annelids belonging to the order Haplotaxida The Haplotaxida are one of two orders within the annelid subclass Oligochaeta, the other being the Lumbriculida. No real common name exists, but they are simply referred to as haplotaxids. Given that the other clitellatan annelids are embedde .... Genera Genera: * '' Aphanascus'' Stephenson, 1924 * '' Arraia'' Hernandez-Garcia, Burgos-Guerrero, Rousseau & James, 2018 * '' Bauba'' Righi, 1980 References {{Taxonbar, from=Q21216003 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megascolecidae
The Megascolecidae is a taxonomic family of earthworms which is native to Madagascar, Australia, New Zealand and both South East Asia and North America. All species of Megascolecidae belong to the Clitellata class. Megascolecidae are a large family of earthworms and they can grow up to 2 meters in length. The intercontinental distribution of Megascolecidae helps in favouring the Continental Drift theory.Reynolds, J.W. 1995. The distribution of earthworms (Annelida, Oligochaeta) in North America. Pp. 133- 153 In: Mishra, P.C., N. Behera, B.K. Senapati and B.C. Guru (eds.). Advances in Ecology and Environmental Sciences. New Delhi: Ashish Publishing House, 651 pp. The distinctive feature that differs Megascolecidae from other earthworm families is their large size in comparison with other earthworm families. They are an essential part of maintaining soil structure, minor carbon sequestration, and maintaining terrestrial ecosystem balance. Megascolecidae is one of many families Ann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthodrilidae The Acanthodrilidae are an ancient and widely distributed family of earthworms which has native representatives in Australia, New Zealand, South Africa, South America, and North America. No native species are known from India (cf. Octochaetidae) nor Asia. The family possibly shows a pre-Pangaean distribution. Membership requires an 'acanthodriline' arrangement of male pores and holoic nephridia. Genera * '' Acanthodrilus'' Perrier, 1872 * '' Afrogaster'' Csuzdi, 2010 * '' Agastrodrilus'' Omodeo & Vaillaud, 1967 * '' Bahlia'' Gates, 1945 * '' Balanteodrilus'' Pickford, 1938 * '' Barogaster'' Gates, 1940 * '' Benhamia'' Michaelsen, 1889 * '' Benhamiona'' Csuzdi & Zicsi, 1994 * '' Borgesia'' James, 1991 * '' Calebiella'' Gates, 1945 * '' Celeriella'' Gates, 1958 * '' Chacdrilus'' Fragoso & Rojas, 2009 * '' Chaetocotoides'' Julka, 1988 * '' Chilota'' Michaelsen, 1899 * '' Cubadrilus'' Rodriguez & Fragoso, 2002 * '' Dashiella'' Julka, 1988 * '' Decachaetus'' Lee, 1959 * '' Deinodr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] |
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