Relictual Slender Salamander

(Batrachoseps relictus)

IUCN Conservation Status: Not selected

Not Selected

Last updated: April 30th, 2004

View on UICN →

Common name(s):Relictual Slender Salamander
Binomial name:Batrachoseps relictus
Location(s): The United States
Size:1.3 - 1.5 inches

Taxonomy

Kingdom:

Animalia (Animal)

Phylum:

Chordata (Chordates)

Class:

Amphibia (Amphibian)

Order:

Caudata (Salamanders)

Genus:

Batrachoseps

More About the Relictual Slender Salamander

The Relictual Slender Salamander is a tiny, worm-like amphibian that lives a quiet life in a very specific part of California. What makes it especially interesting is how rare and isolated it has become. This salamander’s name – “relictual” – actually hints at its status: it’s a leftover from a time when its kind roamed a much broader area. Today, it’s found only in a few secluded spots, clinging to survival in the relatively cool, moist folds of dry Southern California hills.

Size & Physical Appearance

This is a small salamander, typically around 1.5 to 2.2 inches (about 4 to 5.5 cm) from snout to tail base, though the total length including the tail can be double that. Its body is long and narrow with short legs, giving it a very snake-like or wormy appearance — a characteristic trait of all slender salamanders (genus Batrachoseps).

Coloring can range from brown to gray or black with a lighter stripe running down the back. That stripe may have a coppery or silvery sheen, depending on the individual. The undersides are usually darker and unmarked. There aren’t dramatic differences between males and females, at least not ones you’d notice without up-close lab equipment, but juveniles tend to be even slimmer and may appear a bit more translucent.

Habitat and Range

The Relictual Slender Salamander lives in a remarkably limited area of Southern California, primarily in Kern and Tulare counties. It prefers moist leaf litter, oak woodlands, chaparral, and shaded canyons, often at mid elevations (around 3,000 to 6,000 feet) in the Sierra Nevada foothills.

Because Southern California is generally dry, this salamander sticks to the few places where moisture stays in the ground year-round. You’re most likely to find one (if you’re lucky!) by carefully turning over wet logs, rocks, or leaf litter during the cooler, wetter months.

Diet

These salamanders are tiny but hungry. They mostly eat very small invertebrates like:

  • Springtails
  • Mites
  • Tiny beetles
  • Ants and other small insects

What’s especially interesting is how they hunt. Relictual Slender Salamanders rely on stealth and their long, sticky tongues to snag prey, much the same way a frog does, just on a much smaller scale.

Lifespan

In the wild, these salamanders may live around 5 to 10 years, but reliable data is limited because they’re so hard to observe. In captivity, similar species have lived up to 10 years with proper care, though this species isn’t commonly kept.

Identification Tips

Separating the Relictual Slender Salamander from its relatives can be tricky, especially when you’re dealing with several nearly identical Batrachoseps species in California.

Here’s what might help:

  • Body shape: Extremely slender with a long tail and tiny legs close to the body.
  • Color and stripe: Dark body with a narrow light stripe on the back. Stripe may appear metallic under certain light.
  • Range: Found only in a very narrow range in central Southern California. If you’re outside Kern or Tulare counties, it’s probably not this species.

If you’re trying to distinguish it from the related Batrachoseps attenuatus (California Slender Salamander), note that relictuals tend to be smaller and are confined to higher elevations.

Fun Fact

One of the coolest things about this salamander? It has no lungs. Like other slender salamanders, it breathes entirely through its skin and the lining of its mouth — which is why staying moist is so important for its survival. Dry out, and it suffocates.

It’s also a champion of slow-motion survival. After splitting from its relatives millions of years ago, it’s been quietly surviving in just a few mountainous pockets, mostly unnoticed by people.

Quick Recap

  • Scientific name: Batrachoseps relictus
  • Common name: Relictual Slender Salamander
  • Size: 1.5 to 2.2 inches (body length)
  • Range: Small areas of Kern and Tulare counties, California
  • Habitat: Moist leaf litter, shaded slopes, woodlands at mid elevations
  • Diet: Tiny invertebrates
  • Lifespan: 5 to 10 years
  • Notable trait: Lungless — breathes through skin

If you live near its habitat, consider yourself lucky — this is one of California’s most elusive little neighbors. Just be sure to treat its fragile habitat with care. Even stepping in the wrong spot can disturb it or the moisture it depends on.