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A Guide to the Amphibians
and Reptiles of California


Wintu Shasta Salamander - Hydromantes wintu

Bingham, Papenfuss, Lindstrand III, and Wake, 2018

(Formerly known as Hydromantes shastae - Shasta Salamander)

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Shasta Salamander range mapRange: Red

Close-up Range Map



observation link





I have no pictures of Hydromantes wintu. All of the pictures below, including the habitat pictures, are of the species now recognized as Hydromantes samweli - Samwel Shasta Salamander. This species was once thought to be H. samweli, and there are no readily discernible morphological differences that can be used to identify them in the field, so H. wintu should look more or less exactly like these salamanders, and the limestone habitat should also look the same.

Shasta Salamander Shasta Salamander Shasta Salamanders Shasta Salamander
Adult, Shasta County Adult, Shasta County Adult and juvenile, Shasta County Adult, Shasta County. Notice
how flattened the body is to allow the salamander to more easily crawl into cracks.
Shasta Salamander Shasta Salamander Shasta Salamander Shasta Salamander
Adult, Shasta County Adult, Shasta County Webbed toes make it easier for Shasta Salamanders to climb slippery vertical rocks. Underside of adult, Shasta County
       
Habitat
Shasta Salamander habitat Shasta Salamander habitat Shasta Salamander habitat Shasta Salamander habitat
Habitat, Shasta County Habitat, Shasta County Habitat, Shasta County Habitat, Shasta County
     
Description
The following description is mostly based on the traditional descriptions of Hydromantes shastae before it was split into three species.
The three species are morphologically cryptic species, which means that you can't tell them apart by appearance in pictures or in hand.

According to the authors who first described H. wintu "This species has no readily discernable morphological differences from H. shastae or H. samweli." It is "A morphologically cryptic member of the Hydromantes shastae species complex that differs from H. shastae in having a shorter long digit (3) on the pes, and from both it and H. samweli in DFA of morphometric traits.... It differs further from both species in allozymes and in mitochondrial DNA sequences.... **

Size
Adults measure 1 3/4 - 2 1/2 inches long (4.4 - 6.3 cm) from snout to vent length, and from 3 - 4 1/3 inches (7.5 - 11 cm) in total length.

Appearance
A small stocky salamander with a short tail, webbed feet, a flattened body, and a very long mushroom-like tongue capable of extending out up to 2.4 inches (6 cm) from the front of the mouth.
13 costal grooves, and nasolabial grooves.
Not as adapted for crack dwelling as other Hydromantes species with less toe webbing and the body is not as flattened.
Color and Pattern
Dark reddish brown above, mottled with grayish green to tan specks, with some yellow on the tail.
Venter is grayish.

Life History and Behavior
A member of family Plethodontidae, the Plethodontid or Lungless Salamanders.

Plethodontid salamanders do not breathe through lungs. They conduct respiration through their skin and the tissues lining their mouth. This requires them to live in damp environments on land and to move about on the ground only during times of high humidity. (Plethodontid salamanders native to California do not inhabit streams or bodies of water but they are capable of surviving for a short time if they fall into water.)

Plethodontid salamanders are also distinguished by their naso-labial grooves, which are vertical slits between the nostrils and upper lip that are lined with glands associated with chemoreception.

All Plethodontid Salamanders native to California lay eggs in moist places on land.
The young develop in the egg and hatch directly into a tiny terrestrial salamander with the same body form as an adult.
(They do not hatch in the water and begin their lives as tiny swimming larvae breathing through gills like some other types of salamanders.)
Activity
Active at night during fall, winter, and spring rains.
They may also be active underground in the summer - over 20 were discovered in a cave in August.
Can be found under surface objects during daytime.
Adapted to climb easily over smooth rock surfaces, using webbed feet and the tail as an aid.
Defense
Defense mechanisms include raising up the head and tail and flattening the body, producing sticky toxic skin secretions, and tightly coiling the body and tail and rolling downhill (the same escape tactic used by other Hydromantes species.) (You can watch a short video of a different species of salamander using this coiling, rolling and springing escape technique here.)
Diet and Feeding
Probably feeds on insects and other small invertebrates.
Breeding
Little is known about breeding behavior.
Reproduction is terrestrial.
Eggs
Females apparently lay eggs in moist limestone shelters in late summer and brood them until they hatch in late fall. 
Two clutches of 9 eggs were found in a cave by Gorman in 1956.
They would have hatched in late October or early November.
Young
Young develop completely in the egg and hatch fully formed.

Habitat
Found around cliff faces, vertical cavern walls and level ground in mixed forests of Douglas fir, pines, and oaks. Lives in moist caves and rock cracks. Mostly associated with limestone outcrops, but one population has been found in a volcanic outcrop, and others in forest areas with no rock outcrops.

Geographical Range
Endemic to California in a very small area in the Cascade range near human-made Shasta Lake, Shasta County.
Elevational Range

Most locations where H. shastae have been found are at elevations between 800 - 2000 ft. (244 - 610 meters.)
In 2007 a single adult was found at 3,800 ft. (1158 meters) on Bohemotash Mountain in Shasta County.
(Len Lindstrand III. California Fish and Game 94[2):119-121. 2008)

Notes on Taxonomy
Hydromantes shastae was originally discovered in the early 1900's by Eustace Farlong, but not formally described until they were re-discovered by Joseph Gorman in 1950.
(Joe Gorman and C. L. Camp. A New Cave Species of Salamander of the Genus Hydromantes from California, with Notes on Habits and Habitat. Copeia Vol. 1953, No. 1 [Feb. 26, 1953], pp. 39-43)

Hydromantes shastae is Split into Three Species

After mitochondrial DNA analysis, Hydromantes shastae has been split into three cryptic species* with no readily discernible morphological differences that can be used to identify them in the field. All three species occur in the same relatively small area around Shasta Lake that made up the range of Hydromantes shastae.

The three species are:

Shasta Salamander - Hydromantes shastae - Gorman and Camp, 1953

Samwel Shasta Salamander - Hydromantes samweli - Bingham, Papenfuss, Lindstrand III, and Wake, 2018

Wintu Shasta Salamander - Hydromantes wintu - Bingham, Papenfuss, Lindstrand III, and Wake, 2018


* Robert E. Bingham, Theodore J. Papenfuss, Len Lindstrand III, and David B. Wake.
Phylogeography and Species Boundaries in the Hydromantes shastae Complex, with Description of Two New Species (Amphibia; Caudata; Plethodontidae)

Bulletin of the Museum of Comparative Zoology
Volume 161, Number 10 4 April 2018

Shasta Salamander range map

H. wintu is one of five species of Hydromantes, all of which are endemic to California, including the two other Shasta complex Hydromantes and H. brunus, and H. platycephalus.

Eight species of similar salamanders once placed in the genus Hydromantes but now placed in the genus Speleomantes occur in Italy and southern France and on the island of Sardinia. They are the only plethodontid salamanders found outside of the Americas. (A new species of lungless salamander found in Asia in 2004 was placed in a new genus.) Why Hydromantes/Speleomantes are found only in Europe and California is still a biogeographical mystery.

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In Detecting Cryptic Species Using Allozyme Data, (Bruce, Jaeger and Houck (editors) The Biology of Plethodontid Salamanders, 2000.) Richard Highton suggests that Hydromantes shastae consists of two species. He describes a 1978 allozyme analysis by Wake et al of 5 samples from near Lake Shasta that showed one sample from near Potter and Marble Creeks diverging from the other four, and recognized that it might represent a separate species, though he did not recommend any taxonomic changes. The four other samples are closer genetically to H. platycephalus than they are to the Potter-Marble Creek form.

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"This species shows great genetic substructuring, especially unusual given its small geographic range (Wake et al., 1978). The genetic data were analyzed by Larson et al. (1984), who found that the species conforms to a genetic structure and pattern of gene flow in accordance with an island model ... which means that effectively no species-wide gene flow is taking place now or in the recent past." (David Wake and Theodore Papenfuss in Lanoo 2005)

Alternate and Previous Names (Synonyms)

Hydromantes shastae - Shasta Salamander (Stebbins 1954, 1966, 1985, 2003, 2012)

Conservation Issues  (Conservation Status)
Listed as a threatened species by the state under the name Hydromantes shastae.
The limited habitat of this species is threatened by increased recreation around Shasta Lake, limestone quarrying, and raising of lake water levels. Much of its habitat was probably lost in the construction of Shasta Dam in 1949, and from road building and mining.
Taxonomy
Family Plethodontidae Lungless Salamanders Gray, 1850
Genus Hydromantes Web-toed Salamanders Gistel, 1848
Species

wintu Wintu Shasta Salamander Bingham, Papenfuss, Lindstrand III, and Wake, 2018
Original Description
First described as Hydromantes shastae by Gorman and Camp, 1953 - Copeia, p. 39
Described as Hydromantes wintu by Robert E. Bingham, Theodore J. Papenfuss, Len Lindstrand III, and David B. Wake, 2018.

from Original Description Citations for the Reptiles and Amphibians of North America © Ellin Beltz

Meaning of the Scientific Name
Hydromantes: Greek - water/soothsayer or prophet.
wintu: The name of the Native Americans who were the original inhabitants of the area.

In part from Scientific and Common Names of the Reptiles and Amphibians of North America - Explained © Ellin Beltz

Related California Salamanders
Mt. Lyell Salamander
Limestone Salamander
Shasta Salamander
Samweli Shasta Salamander

More Information and References
California Department of Fish and Wildlife

AmphibiaWeb

** Robert E. Bingham, Theodore J. Papenfuss, Len Lindstrand III, and David B. Wake.
Phylogeography and Species Boundaries in the Hydromantes shastae Complex, with Description of Two New Species (Amphibia; Caudata; Plethodontidae)

Bulletin of the Museum of Comparative Zoology Volume 161, Number 10, 4 April 2018

Stebbins, Robert C., and McGinnis, Samuel M.  Field Guide to Amphibians and Reptiles of California: Revised Edition (California Natural History Guides) University of California Press, 2012.

Stebbins, Robert C. California Amphibians and Reptiles. The University of California Press, 1972.

Gorman, J. and Camp, C. L. (1953). "A new cave species of salamander of the genus Hydromantes from California, with notes on habits and habitats." Copeia, 1953, 39-43.

Thelander, Carl G., editor in chief. Life on the Edge - A Guide to California's Endangered Natural Resources - Wildlife. Berkeley: Bio Systems Books, 1994.

Stebbins, Robert C. A Field Guide to Western Reptiles and Amphibians. 3rd Edition. Houghton Mifflin Company, 2003.

Behler, John L., and F. Wayne King. The Audubon Society Field Guide to North American Reptiles and Amphibians. Alfred A. Knopf, 1992.

Powell, Robert., Joseph T. Collins, and Errol D. Hooper Jr. A Key to Amphibians and Reptiles of the Continental United States and Canada. The University Press of Kansas, 1998.

Bartlett, R. D. & Patricia P. Bartlett. Guide and Reference to the Amphibians of Western North America (North of Mexico) and Hawaii. University Press of Florida, 2009.

Bishop, Sherman C. Handbook of Salamanders. Cornell University Press, 1943.

Lannoo, Michael (Editor). Amphibian Declines: The Conservation Status of United States Species. University of California Press, June 2005.

Petranka, James W. Salamanders of the United States and Canada. Smithsonian Institution, 1998.

Jones, Lawrence L. C. , William P. Leonard, Deanna H. Olson, editors. Amphibians of the Pacific Northwest. Seattle Audubon Society, 2005.

Conservation Status

The following status listings are copied from the April 2018 Special Animals List and the 2017 Endangered and Threatened Animals List, both of which are published by the California Department of Fish and Wildlife.

If no status is listed here, the animal is not included on either CDFW list. This most likely indicates that there are no serious conservation concerns for the animal. To find out more about an animal's status, you can go to the NatureServe and IUCN websites to check their rankings.

Check here to see the most current complete lists.


These rankings are based on the rankings of Hydromantes shastae before it was split into three species.

Organization
Status Listing
NatureServe Global Ranking G1G2 Critically Imperiled - Imperiled
NatureServe State Ranking S3

Vulnerable in the state due to a restricted range, relatively few populations (often 80 or fewer), recent and widespread declines, or other factors making it vulnerable to extirpation from the state.

U.S. Endangered Species Act (ESA) None
California Endangered Species Act (CESA) ST - 6/27/71 Threatened
California Department of Fish and Wildlife None
Bureau of Land Management S Sensitive
USDA Forest Service S Sensitive
IUCN VU Vulnerable
 

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