Nose to nose with a California Giant Salamander.
California has it all. Well almost all. Except for what they don’t have. But if its caudatan diversity you’re interested in, California is definitely a state you should consider visiting. Newts, Lunged salamanders and Lungless salamanders all may be found there. Some are colorful, some are drab. Some are tiny, some are comparatively large. All are interesting.
One of the groups that I find of great interest are the Giant Salamanders of the genus
Dicamptodon (family Dicamptodontidae). Of the 4 species 2 dwell in California’s cool, moist forestlands. These are The California and the Pacific Giant Salamanders,
D. ensatus and
D. tenebrosus, respectively. Both are hefty, and both top out at just about a foot in length, with
tenebrosus perhaps being a bit more slender, a tiny bit shorter, having a proportionately smaller head and shorter limbs. This latter is also a bit darker in color. The former, the California Giant, is the southernmore of the 2, ranging southward in the Coast Range from southern Mendocino County to western Glenn County. The Pacific Giant ranges northward from Glenn County to southwest British Columbia, Canada.
Populations of both of these big nocturnal salamanders are adversely affected by foresting practices that leave stream banks unprotected, subject to drying, and the streams themselves subject to warming. Although both of these salamanders are variably colored, neither is brightly colored. Ground color of both is tan to light brown with well-defined reticulations and spots of reddish brown to dark brown. They breed in streams and creeks and the aquatic larvae may take several years to metamorphose.
Prey includes invertebrates such as worms and slugs as well as vertebrate prey such as smaller salamanders.
Creatures of cool, moist, California forestlands, this is the big California Giant Salamander,
Dicamptodon ensatus.
The Pacific Giant Salamander,
Dicamptodon tenebrosus, is very similar to the California Giant.