Patternless California Snakes

Rubber Boas - Genus Charina

Thick-bodied, slow-moving snakes mostly found underneath objects in moist areas and mountains,
or found active at night, often on roads. Able to tolerate colder temperatures than most snakes. Juveniles can be brightly colored. There is a separate page about identifying the two species of Rubber Boas in California.

Unicolor Rosy Boa - Lichanura orcutti

Thick-bodied, slow-moving snake only found in coastal southern San Diego County.
This snake often has a trace of pattern, but its overall appearance is patterness,
especially when compared to the more striped appearance of typical Rosy Boas.

Western Yellow-bellied Racer - Coluber constrictor mormon

Fast-moving snake found in the daytime usually in open or grassy areas. Can be grayish,
greenish, brownish, or reddish, sometimes with yellow coloring apparent on the sides and belly.
Juveniles have a strongly-marked blotched pattern, which fades as they mature.

Blackheaded Snakes - Genus Tantilla

Very small burrowing snakes usually found beneath surface objects in moist areas, occasionally on the surface at night. Black-headed snakes are uncommon, and found in the south, and up the Sierras and coast range up to the mid-part of the state.
They have a reddish underside, a black head, and a white ring around the neck, but the overall appearance is patternless.
There is a separate page about identifying the two species of Black-headed Snakes found in California.

Sharp-tailed Snakes - Genus Contia

Small burrowing snakes usually found beneath surface objects in moist areas, occasionally on the surface at night. Sharp-tailed snakes are found along the coast ranges and the Sierras, but not in the southern part of the state. Most of them have the appearance of faint stripes along the body, but the overall appearance of some of them is patternless.
There is a separate page about identifying the two different species of sharp-tailed snakes.

Ring-necked Snakes - Diadophis punctatus

Very small burrowing snakes usually found beneath surface objects in moist areas, occasionally on the surface at night. Ringneck snakes are found throughout the state, except most of the deserts. They have a colorful underside, often with black spots, and a dark head with a colorful ring around the neck, but most of the body is unicolor and patternless.

There is a separate page about identifying the several types of Ring-necked Snakes found in California.

Threadsnakes (Blindsnakes) - Rena humilis

Brahminy Blindsnake - Indotyphlops braminus

This patternless non-native snake has been established in various locations in Southern California
and is expected to become more widespread.
There is a separate page about identifying the two species of Blindsnakes/Threadsnakes found in Californa.

Two-striped Gartersnake - Thamnophis hammondii

A gartersnake found along central coast and southern California. Usually found in or near water. Light stripes on the
sides may not be apparent on some snakes, making it appear patternless, especially on melanistic snakes.

Baja California Coachwhip - Masticophis fuliginosus

This fast-moving diurnal species is only found in extreme southern San Diego County, next to the border with Mexico. It has two phases, a dark phase that appears patternless, and a silver phase usually with some dark markings.

San Joaquin Coachwhip - Masticophis ruddocki

A fast-moving diurnal snake found in open dry areas in inland central California. Some snakes of this subspecies of Coachwhip, especially juveniles, appear to have a pattern of dark and light scales, and there maybe dark blotching on the head, but the overall appearance of most aduts is patternless.

Baja California Ratsnake - Bogertophis rosaliae

A Baja California snake, extremely rare in California. Known from only one dead snake found in California in 1984.
Found only in the extreme southern desert along the Baja California border.

Aberrant Patternless Rattlesnakes - Genus Crotalus