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Mudpuppies
''Necturus'' is a genus of aquatic salamanders 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. Taxonomy The genus is under scrutiny by herpetologists. The relationship between the species is still being studied. In 1991 Collins elevated ''N. maculosus louisianensis'' to full species status, usually considered a subspecies of the common mudpuppy (''N. maculosus''), but his interpretation was not largely followed.Petranka, J.W. (1998). Salamanders of the United States and Canada. Smithsonian Institution Press . However, a 2018 study confirmed it as a distinct species, with Amphibian Species of the World following these results, although other authorities do not.'''' Species There are seven to eight species: Two known fossil species, '' N. krausei'' and an unnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Mudpuppy
The common mudpuppy (''Necturus maculosus'') is a species of salamander in the genus ''Necturus''. They live an entirely aquatic lifestyle in parts of North America in lakes, rivers, and ponds. They go through paedomorphosis and retain their external gills. Because skin and lung respiration alone is not sufficient for gas exchange, mudpuppies must rely on external gills as their primary means of gas exchange. They are usually a rusty brown color and can grow to an average length of .Gans, C., and R. A. Nussbaum (1981). "The Mudpuppy." ''Vertebrates, a Laboratory Text.'' Ed. Norman K. Wessells and Elizabeth M. Center. 2nd ed. Los Altos, Calif.: W. Kaufmann, pp. 108–41. Mudpuppies are nocturnal creatures, and come out during the day only if the water in which they live is murky. Their diet consists of almost anything they can get in their mouths, including insects, mollusks, and earthworms (as well as other annelids). Once a female mudpuppy reaches sexual maturity at six years of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Maculosus
The common mudpuppy (''Necturus maculosus'') is a species of salamander in the genus ''Necturus''. They live an entirely aquatic lifestyle in parts of North America in lakes, rivers, and ponds. They go through paedomorphosis and retain their external gills. Because skin and lung respiration alone is not sufficient for gas exchange, mudpuppies must rely on external gills as their primary means of gas exchange. They are usually a rusty brown color and can grow to an average length of .Gans, C., and R. A. Nussbaum (1981). "The Mudpuppy." ''Vertebrates, a Laboratory Text.'' Ed. Norman K. Wessells and Elizabeth M. Center. 2nd ed. Los Altos, Calif.: W. Kaufmann, pp. 108–41. Mudpuppies are nocturnal creatures, and come out during the day only if the water in which they live is murky. Their diet consists of almost anything they can get in their mouths, including insects, mollusks, and earthworms (as well as other annelids). Once a female mudpuppy reaches sexual maturity at six years of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Alabamensis 113150020
''Necturus'' is a genus of aquatic salamanders 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. Taxonomy The genus is under scrutiny by herpetologists. The relationship between the species is still being studied. In 1991 Collins elevated ''N. maculosus louisianensis'' to full species status, usually considered a subspecies of the common mudpuppy (''N. maculosus''), but his interpretation was not largely followed.Petranka, J.W. (1998). Salamanders of the United States and Canada. Smithsonian Institution Press . However, a 2018 study confirmed it as a distinct species, with Amphibian Species of the World following these results, although other authorities do not.'''' Species There are seven to eight species: Two known fossil species, '' N. krausei'' and an unnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Maculosus 147397
''Necturus'' is a genus of aquatic salamanders 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. Taxonomy The genus is under scrutiny by herpetologists. The relationship between the species is still being studied. In 1991 Collins elevated ''N. maculosus louisianensis'' to full species status, usually considered a subspecies of the common mudpuppy (''N. maculosus''), but his interpretation was not largely followed.Petranka, J.W. (1998). Salamanders of the United States and Canada. Smithsonian Institution Press . However, a 2018 study confirmed it as a distinct species, with Amphibian Species of the World following these results, although other authorities do not.'''' Species There are seven to eight species: Two known fossil species, '' N. krausei'' and an unnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red River Waterdog
The Red River waterdog (''Necturus louisianensis''), also called Louisiana waterdog, is a species of aquatic salamander in the family Proteidae. Taxonomy Some taxonomic authorities consider this salamander to be a subspecies of the common mudpuppy (''N. maculosus)'' as ''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 and 1997, but supporting data was lacking. Petranka (1998) and Crother (2000) both treated this animal as a subspecies.Geoffrey Hammerson (2004''Necturus maculosus'' In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Phylogenetic and morphological analyses done by Chabbaria ''et al.'' 2018, confirmed them as being distinct species''.'' However, some authorities still keep it as a subspecies. Geographic range It is found in southeastern Kansas, southern Missouri, northeastern Oklahoma, Arkansas, and northcentral Louisiana. It lives only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Louisianensis
The Red River waterdog (''Necturus louisianensis''), also called Louisiana waterdog, is a species of aquatic salamander in the family Proteidae. Taxonomy Some taxonomic authorities consider this salamander to be a subspecies of the common mudpuppy (''N. maculosus)'' as ''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 and 1997, but supporting data was lacking. Petranka (1998) and Crother (2000) both treated this animal as a subspecies.Geoffrey Hammerson (2004''Necturus maculosus'' In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Phylogenetic and morphological analyses done by Chabbaria ''et al.'' 2018, confirmed them as being distinct species''.'' However, some authorities still keep it as a subspecies. Geographic range It is found in southeastern Kansas, southern Missouri, northeastern Oklahoma, Arkansas, and northcentral Louisiana. It lives only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red River Mudpuppy (Necturus Maculosus) (42694782124)
The Red River waterdog (''Necturus louisianensis''), also called Louisiana waterdog, is a species of aquatic salamander in the family Proteidae. Taxonomy Some taxonomic authorities consider this salamander to be a subspecies of the common mudpuppy (''N. maculosus)'' as ''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 and 1997, but supporting data was lacking. Petranka (1998) and Crother (2000) both treated this animal as a subspecies.Geoffrey Hammerson (2004''Necturus maculosus'' In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Phylogenetic and morphological analyses done by Chabbaria ''et al.'' 2018, confirmed them as being distinct species''.'' However, some authorities still keep it as a subspecies. Geographic range It is found in southeastern Kansas, southern Missouri, northeastern Oklahoma, Arkansas, and northcentral Louisiana. It lives only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuse River Waterdog
The Neuse River waterdog, ''Necturus lewisi'', is a medium-sized waterdog, family Proteidae, found in two rivers of North Carolina. Range The range of the Neuse River waterdog is limited to the Neuse and Tar-Pamlico River basins in the eastern Piedmont and Coastal Plain of North Carolina. Appearance and physiology ''N. lewisi'' has a rusty-brown dorsal side with many large, bluish-black spots. The ventral side is dark brown to grey and also spotted. The snout is compressed dorsally and truncated. The tail is compressed laterally and ridged. Each hind limb has four toes, and the gills are dull red and bushy. Sexually active males have sowled cloacae and two enlarged cloacal papillae that point to the rear. Males and females are of a similar size. Adults measure 16.5–28.0 cm from the tip of snout to tip of tail. The young possess a dorsal stripe along their length along with a dark lateral stripe. Males and females become sexually mature after reaching 102 mm and 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Krausei
''Necturus krausei'' is an extinct species of mudpuppy salamanders from the Paleocene of Saskatchewan in Canada. It is known from a set of vertebrae found in the Ravenscrag Formation The Ravenscrag Formation is a stratigraphic unit of early Paleocene age in the Western Canada Sedimentary Basin. It was named for the settlement of Ravenscrag, Saskatchewan, and was first described from outcrops at Ravenscrag Butte near the Frenc .... References Proteidae Prehistoric salamanders Paleogene amphibians of North America Paleogene Canada Fossils of Canada Paleontology in Saskatchewan Fossil taxa described in 1978 {{paleo-salamander-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Waterdog
The dwarf waterdog (''Necturus punctatus'') is an aquatic salamander endemic to the Eastern United States. It is the smallest member of the family Proteidae. Description This species is usually between long. It has bushy, narrow gills and a compressed tail. All feet have four toes. The salamander is uniform slate gray to brown or dark olive dorsally and dirty white ventrally. Most individuals have no dorsal spots; when the dorsal spots are present, the venter is unspotted (unlike in ''Necturus lewisi'', which is also a larger species). Juveniles are uniformly brown dorsally (as opposed to striped, as in other juvenile ''Necturus''). Geographic range ''Necturus punctatus'' is found on the Atlantic coastal plain and the Piedmont of the eastern United States, from southeastern Virginia to southcentral Georgia. Populations further west into Alabama and Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Punctatus
The dwarf waterdog (''Necturus punctatus'') is an aquatic salamander endemic to the Eastern United States. It is the smallest member of the family Proteidae. Description This species is usually between long. It has bushy, narrow gills and a compressed tail. All feet have four toes. The salamander is uniform slate gray to brown or dark olive dorsally and dirty white ventrally. Most individuals have no dorsal spots; when the dorsal spots are present, the venter is unspotted (unlike in ''Necturus lewisi'', which is also a larger species). Juveniles are uniformly brown dorsally (as opposed to striped, as in other juvenile ''Necturus''). Geographic range ''Necturus punctatus'' is found on the Atlantic coastal plain and the Piedmont of the eastern United States, from southeastern Virginia to southcentral Georgia. Populations further west into Alabama and Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escambia Waterdog
The Escambia waterdog (''Necturus mounti'') is a species of aquatic salamander in the family Proteidae. It is endemic to the southeastern United States. Taxonomy It was formerly thought to be a lineage of the Gulf Coast waterdog (''N. beyeri''), but a 2020 analysis found sufficient morphological and genetic divergence for it to be considered its own species, and it was thus described as its own species, ''N. mounti'' (alongside the Apalachicola waterdog, ''N. moleri''). The specific epithet honors American herpetologist Robert H. Mount. Distribution It is found in southern Alabama and the Panhandle of Florida. It is found in the Blackwater, Escambia/Conecuh, Perdido, and Yellow river basins A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the .... Description In contrast to ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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