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Goodeidae
Goodeidae is a family of teleost fish endemic to Mexico and some areas of the United States. Many species are known as splitfins. This family contains about 50 species within 18 Genus, genera. The family is named after ichthyologist George Brown Goode (1851–1896). The earliest fossil goodeid is ''Tapatia (genus), Tapatia'', a goodeine from the middle Miocene of Mexico. The earliest fossil empetrichthyine is ''Empetrichthys erdisi'' from the Miocene or Pliocene of California. Distribution The family is divided into two subfamilies, the Goodeinae and the Empetrichthyinae. The Goodeinae are endemic to shallow freshwater habitats in Mexico, particularly along the Mesa Central area (especially the Lerma River basin, smaller rivers directly south of it and inland to around the Valley of Mexico region), with some species found in brackish fringes at the Pacific coast, and north to central Durango, central Sinaloa and north San Luis Potosí. There are about 45 species of Goodeinae i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goodeinae
Goodeinae is a subfamily of splitfins from Mexico, part of the Family (biology), family Goodeidae. They are small fish which mostly live in fresh water, especially around Mesa Central, west of Mexico City. Members of the subfamily are also found in brackish water on both the east and west coasts. They typically have small ranges and many are seriously Threatened species, threatened (some already extinct). The subfamily takes its name from its type genus ''Goodea'' and so is ultimately named after the United States, American ichthyologist George Brown Goode (1851-1896). Genera The following genera make up the subfamily Goodeinae: * ''Allodontichthys'' Carl Leavitt Hubbs, C. L. Hubbs & Clarence Lester Turner, C. L. Turner, 1939 * ''Alloophorus'' Hubbs & Turner, 1939 * ''Allotoca'' Hubbs & Turner, 1939 * ''Ameca (fish), Ameca'' Robert Rush Miller, R. R. Miller & John Michael Fitzsimons, Fitzsimons, 1971 * ''Ataeniobius'' Hubbs & Turner, 1939 * ''Chapalichthys'' Hubbs, 1926 * ''Char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empetrichthyinae
Empetrichthyinae is a subfamily of fishes, one of two subfamilies that make up the family Goodeidae. The earliest fossil empetrichthyine is '' Empetrichthys erdisi'' from the Miocene or Pliocene of California. Genera There are two genera within the subfamily Empetrichthyinae: * '' Crenichthys'' Hubbs, 1932 * ''Empetrichthys ''Empetrichthys'' is a genus of splitfins endemism, endemic to the state of Nevada in the United States. In 1989 they only had an estimated population of 24800, while its two other subspecies had gone extinct. This species mating season typically ...'' Gilbert, 1893 References {{Taxonbar, from=Q20722376 Goodeidae Taxa named by David Starr Jordan Taxa named by Barton Warren Evermann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redtail Splitfin
The redtail splitfin or redtail goodeid (''Xenotoca eiseni'') is a species of goodeid fish from the family Goodeidae and subfamily Goodeinae. Like other members of Goodeinae, the redtail splitfin is native to Mexico and a livebearer. However, the goodeid mating system differs in several ways from the more common livebearing fish from the family Poeciliidae that includes guppies and swordtails. While no goodeid species is a very popular aquarium fish, the redtail splitfin is one of the most popular. Only the male has the red-orange tail for which it is named. Its specific name honours the collector of the type, Gustav Eisen (1847–1940) who was Curator of Marine Invertebrates at the California Academy of Sciences in San Francisco, California. Range and habitat The redtail splitfin comes from west-central Mexico in the Grande de Santiago River basin and waters near Compostela, Nayarit. It might also occur in the uppermost Ameca and Armería River basins, but the taxo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Brown Goode
George Brown Goode (February 13, 1851 – September 6, 1896), was an American ichthyologist and museum administrator. Early life and family George Brown Goode was born February 13, 1851, in New Albany, Indiana, to Francis Collier Goode and Sarah Woodruff Crane Goode. He spent his childhood in Cincinnati, Ohio and Amenia, New York. He married Sarah Ford Judd on November 29, 1877. She was the daughter of Orange Judd, a prominent agricultural writer. Together, they had four children: Margaret Judd, Kenneth Mackarness, Francis Collier, and Philip Burwell. He graduated from Wesleyan University and studied at Harvard University. In addition to his scientific publications, Goode wrote Virginia Cousins: A Study of the Ancestry and Posterity of John Goode of Whitby'where he traced his ancestry back to John Goode, a 17th-century colonist from Whitby. Career In 1872, Goode started working with Spencer Baird, soon becoming his trusted assistant. While working with Baird, Goode led research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empetrichthys Erdisi
''Empetrichthys'' is a genus of splitfins endemic to the state of Nevada in the United States. In 1989 they only had an estimated population of 24800, while its two other subspecies had gone extinct. This species mating season typically falls in spring. These animals are in danger and facing threats because their water is drying out because of pumping of ground water for agricultural developments. Species There are currently two recognized recent species in this genus of which only one is extant, in addition to one fossil species: * '' Empetrichthys latos'' R. R. Miller, 1948 ** '' Empetrichthys latos concavus'' R. R. Miller, 1948 (Raycraft Ranch poolfish) ** '' Empetrichthys latos latos'' R. R. Miller, 1948 (Pahrump poolfish) ** '' Empetrichthys latos pahrump'' R. R. Miller, 1948 (Pahrump Ranch poolfish) * '' Empetrichthys merriami'' C. H. Gilbert, 1893 (Ash Meadows poolfish) * '' Empetrichthys erdisi'' (Jordan, 1924) (fossil, Miocene or Pliocene of California Califo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andropodium
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are predominantly a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
A fish (: fish or fishes) is an aquatic animal, aquatic, Anamniotes, anamniotic, gill-bearing vertebrate animal with swimming fish fin, fins and craniate, a hard skull, but lacking limb (anatomy), limbs with digit (anatomy), digits. Fish can be grouped into the more basal (phylogenetics), basal jawless fish and the more common jawed fish, the latter including all extant taxon, living cartilaginous fish, cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single Class (biology), class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are ectotherm, cold-blooded, their body temperature varying with the surrounding water, though some large nekton, active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communication in aquatic animals#Acoustic, communicate acoustically with each other, such as during courtship displays. The stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleost
Teleostei (; Ancient Greek, Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts (), is, by far, the largest group of ray-finned fishes (class Actinopterygii), with 96% of all neontology, extant species of fish. The Teleostei, which is variously considered a Division (zoology), division or an infraclass in different taxonomic systems, include over 26,000 species that are arranged in about 40 order (biology), orders and 448 family (biology), families. Teleosts range from giant oarfish measuring or more, and ocean sunfish weighing over , to the minute male anglerfish ''Photocorynus spiniceps'', just long. Including not only torpedo-shaped fish built for speed, teleosts can be flattened vertically or horizontally, be elongated cylinders or take specialised shapes as in anglerfish and seahorses. The difference between teleosts and other bony fish lies mainly in their jaw bones; teleosts have a movable premaxilla and corresponding modifications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matrotrophy
Matrotrophy is a form of maternal care during organism development, associated with live birth (viviparity), in which the embryo of an animal or flowering plant is supplied with additional nutrition from the mother (e.g. through a placenta). This can be contrasted with lecithotrophy, in which the only source of nutrition for the embryo is yolk originally contained within its egg. Vegetal matrotrophy In plants, matrotrophy is considered a critical evolutionary development preceding the origin of embryophytes and therefore essential to the evolution of land plants. Matrotrophy is facilitated by cytological and ultrastructural modifications on one or both sides of the generational junction, a region called the placenta. Specialization of the placental cells pertains further to their cytological and ultrastructural characteristics: the cytoplasm is often dense and rich in lipids, the vacuole is typically reduced but large in ''Sphagnum'', the endoplasmic reticulum extensive, mitoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackish
Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuaries, or it may occur in brackish fossil aquifers. The word comes from the Middle Dutch root '' brak''. Certain human activities can produce brackish water, in particular civil engineering projects such as dikes and the flooding of coastal marshland to produce brackish water pools for freshwater prawn farming. Brackish water is also the primary waste product of the salinity gradient power process. Because brackish water is hostile to the growth of most terrestrial plant species, without appropriate management it can be damaging to the environment (see article on shrimp farms). Technically, brackish water contains between 0.5 and 30 grams of salt per litre—more often expressed as 0.5 to 30 parts per thousand (‰), which is a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Fertilisation
Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body. Internal fertilization, unlike its counterpart, external fertilization, brings more control to the female with reproduction. For internal fertilization to happen there needs to be a method for the male to introduce the sperm into the female's reproductive tract. Most taxa that reproduce by internal fertilization are gonochoric. Male mammals, reptiles, and certain other vertebrates transfer sperm into the female's vagina or cloaca through an intromittent organ during copulation. In most birds, the cloacal kiss is used, the two animals pressing their cloacas together while transferring sperm. Salamanders, spiders, some insects and some molluscs undertake internal fertilization by transferring a spermatophore, a bundle of sperm, from the male to the female. Following fertilization, the embryos are laid as eggs in oviparous organisms, or continue to develop inside the repro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
