Photo by Chris Brown

Scientific name: Batrachoseps nigriventris

Common name: Black-bellied Slender Salamander

Size: 1.22-1.70 in (3.1-4.3 cm)

Distinguishing characters: A small species; worm-like body, small head and limbs; long cylindrical tail, often twice body length; black, tan, reddish, brown or beige dorsum often with contrasting broad mid-dorsal stripe of similar colors; purplish or black venter with fine light speckling over entire surface.

Juveniles: Similar to adults; more pronounced dorsal stripe contrast in some individuals.

Dimorphism: None

Similar species: Batrachoseps pacificus: Has larger head, longer limbs; lacks dark venter with light speckling; paler overall coloration. High elevation (over 1,000 meters) Batrachoseps pacificus in San Diego Co. look very similar to Batrachoseps nigriventris. Batrachoseps gabrieli: Only occurs in San Gabriel Canyon, Los Angeles Co., has larger head and limbs than Batrachoseps nigriventris.

Additional notes: Occurs primarily southward to Orange County and northwestern Riverside County where it can be sympatric with Batrachoseps pacificus. This species will coil its body and tail when handled; it is fragile and easily injured. Prefers oak and sycamore woolands over other habitats.

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