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Necturus
''Necturus'' is a genus of aquatic salamanders in the family Proteidae. Species of the genus are native to the eastern United States and Canada. They are commonly known as waterdogs and mudpuppies. The common mudpuppy ''(N. maculosus)'' is probably the best-known species – as an amphibian with gill slits, it is often dissected in comparative anatomy classes. The common mudpuppy has the largest distribution of any fully aquatic salamander in North America. Taxonomy The genus ''Necturus'' is under scrutiny by herpetologists. The relationship between the species is still being studied. In 1991, Collins recommended ''N. maculosus louisianensis'' be elevated to full species status as ''N. louisianensis''. Originally described by Viosca as a species, it is usually considered a subspecies of the common mudpuppy (''N. maculosus''). However, the interpretation of Collins was not largely followed. Petranka, J.W. (1998). ''Salamanders of the United States and Canada''. Washington, D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Maculosus
The common mudpuppy (''Necturus maculosus'') is a species of salamander in the Family (biology), family Proteidae. It lives an entirely aquatic lifestyle in parts of North America in lakes, rivers, and ponds. It goes through paedomorphosis and retains its external gills. Because skin and lung respiration alone is not sufficient for gas exchange, the common mudpuppy must rely on external gills as its primary means of gas exchange. It is usually a rusty brown color and can grow to an average total length (including tail) of .Carl Gans, Gans, C., and Ronald Archie Nussbaum, R.A. Nussbaum (1981). "The Mudpuppy". pp. 108–141. ''In'': Wessells, Norman K., and Elizabeth M. Center (editors) (1981). ''Vertebrates, a Laboratory Text, Second Edition''. Los Altos, California: W. Kaufmann. It is a nocturnal creature, and is active during the day only if the water in which it lives is murky. Its diet consists of almost anything it can get into its mouth, including insects, mollusks, and earthw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Mudpuppy
The common mudpuppy (''Necturus maculosus'') is a species of salamander in the family Proteidae. It lives an entirely aquatic lifestyle in parts of North America in lakes, rivers, and ponds. It goes through paedomorphosis and retains its external gills. Because skin and lung respiration alone is not sufficient for gas exchange, the common mudpuppy must rely on external gills as its primary means of gas exchange. It is usually a rusty brown color and can grow to an average total length (including tail) of . Gans, C., and R.A. Nussbaum (1981). "The Mudpuppy". pp. 108–141. ''In'': Wessells, Norman K., and Elizabeth M. Center (editors) (1981). ''Vertebrates, a Laboratory Text, Second Edition''. Los Altos, California: W. Kaufmann. It is a nocturnal creature, and is active during the day only if the water in which it lives is murky. Its diet consists of almost anything it can get into its mouth, including insects, mollusks, and earthworms (as well as other annelids). Once a female co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Alabamensis 113150020
''Necturus'' is a genus of aquatic salamanders in the family Proteidae. Species of the genus are native to the eastern United States and Canada. They are commonly known as waterdogs and mudpuppies. The common mudpuppy ''(N. maculosus)'' is probably the best-known species – as an amphibian with gill slits, it is often dissected in comparative anatomy classes. The common mudpuppy has the largest distribution of any fully aquatic salamander in North America. Taxonomy The genus ''Necturus'' is under scrutiny by herpetologists. The relationship between the species is still being studied. In 1991, Collins recommended ''N. maculosus louisianensis'' be elevated to full species status as ''N. louisianensis''. Originally described by Viosca as a species, it is usually considered a subspecies of the common mudpuppy (''N. maculosus''). However, the interpretation of Collins was not largely followed. Petranka, J.W. (1998). ''Salamanders of the United States and Canada''. Washington, Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Waterdog
The western waterdog (''Necturus beyeri'') is a species of aquatic salamander in the family Proteidae. It is endemic to the deep South, where it occurs in Alabama, Louisiana, Mississippi, and Texas. Taxonomy This may be a species complex that could be split into different taxa as research indicates;NatureServe. 2015''Necturus beyeri''.NatureServe Explorer Version 7.1. Retrieved 25 June 2016. the Apalachicola (''N. moleri'') and Escambia (''N. mounti'') waterdogs were split from this species in 2020; previously, they were all grouped together as the Gulf Coast waterdog. It is closely related to '' Necturus alabamensis''.IUCN SSC Amphibian Specialist Group. 2014''Necturus beyeri''.The IUCN Red List of Threatened Species 2014. Retrieved 25 June 2016. Studies indicate that as currently defined, it comprises four lineages: the "Mobile" lineage (ranging from the Mobile River to the Biloxi River), the "Pearl" lineage (ranging from the Wolf River to the Pearl River), the "Pontcha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteidae
The family (biology), family Proteidae is a group of aquatic Salamander, salamanders found today in the Balkan Peninsula and North America. The range of the genus ''Necturus'' (commonly known as waterdogs or mudpuppies) runs from southern central Canada, through the midwestern United States, east to North Carolina and south to Georgia and Mississippi. The range of the olm, the only extant member of the genus ''Proteus'', is limited to the Western Balkans. The fossil record of the family extends back to the Late Cretaceous, with ''Paranecturus'' being known from the Maastrichtian of North America, and ''Bishara (salamander), Bishara'' from the Santonian-Campanian of Central Asia. Taxonomy Proteidae, is divided into two extant taxon, extant genera, ''Necturus'' with five North American species, and ''Olm, Proteus'' with one extant European species, the olm. A number of extinct genera are known extending back to the end of the Late Cretaceous. Family Proteidae * Genus ''Nectu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Alabamensis
The Alabama waterdog (''Necturus alabamensis'') is a medium-sized perennibranch salamander inhabiting rivers and streams of Alabama. It is listed as endangered by the IUCN and the United States Fish and Wildlife Service. Description The Alabama waterdog is medium-sized at , with four toes and a laterally compressed tail. Its gills are permanent, bushy, and red. Typical adults exhibit a brown or black dorsum with minimal or no spotting, and the ventral side is white and often not spotted. Distribution and habitat The Alabama waterdog is found in the Appalachian headwaters of the Black Warrior River drainage basin in Alabama. Its range includes the Sipsey Fork and Brushy Creek in Winston County, the Mulberry Fork, Blackwater Creek, and Lost Creek in Walker County, the North River and Yellow Creek in Tuscaloosa County, and the Locust Fork and Blackburn Fork in Blount County. It is found in unsilted small and medium-sized streams in clay areas. It is more likely to be present when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red River Waterdog
The Red River mudpuppy (''Necturus maculosus louisianensis''), also called Louisiana waterdog or Red River waterdog, is a subspecies of aquatic salamander in the family Proteidae. Taxonomy Most taxonomic authorities currently hen?consider this salamander to be a subspecies of the common mudpuppy (''N. maculosus''): ''N. maculosus louisianensis'', or the Red River mudpuppy. The Red River waterdog was proposed as a separate species from the common mudpuppy by Collins in 1991, but supporting data was lacking. Petranka (1998) and Crother (2017) both treated this fully aquatic salamander as a subspecies. Phylogenetic and morphological analyses conducted by Chabbaria ''et al.'' 2018, suggested two distinct lineages of ''N. maculosus'' in the Great Lakes and Mississippi River, and similar results were obtained from analyses of mitochondrial DNA (mtDNA) samples from the upper Midwest, Great Lakes, and New England by Greenwald ''et al.'' 2020. Geographic range It is found in southeas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salamander
Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped together under the order Urodela, the sole surviving order from the group Caudata. ''Urodela'' is a scientific Latin term based on the Ancient Greek : ourà dēlē "conspicuous tail". ''Caudata'' is the Latin for "tailed ones", from : "tail". Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, but some species have fewer digits and others lack hind limbs. Their permeable skin usually makes them reliant on habitats in or near water or other cool, damp places. So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percy Viosca
Percy Viosca Jr. was a freshwater and marine biologist who specialized in the fauna of Louisiana and in the aquaculture of sportfish. He identified four species of native Louisiana iris and experimented extensively with iris breeding, much like his contemporary Caroline Dormon. He was awarded bachelor's and master's degrees in science at Tulane University, where he was also appointed lecturer. His early career included many scientific publications with taxonomic contributions and life histories of the animals he studied. Later, his interests shifted to methods of increasing the productivity of freshwater aquaculture. His reports on this subject often take examples from his work as a fisheries consultant and the biological supply company he operated. While working for the Louisiana Department of Wildlife and Fisheries in the field of herpetology, he documented the coastal Louisiana landscape. His work also included mosquito control, riparian and marshland studies, flood control, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
