DeKay's Brownsnake
Storeria dekayi • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Natricinae, Genus: Storeria, Species: Storeria dekayi
Venomous Status
Non-venomous (Aglyphous - lacks specialized fangs or venom delivery system)
Danger Level
Harmless - They pose no threat to humans or pets. They are extremely unlikely to bite, and even if they do, their teeth are too small to cause significant injury.
Geographic Range
Widely distributed throughout North America, ranging from southern Canada (Ontario, Quebec) through the eastern half of the United States, and south into Mexico, Guatemala, and Honduras.
Conservation Status
Least Concern (IUCN). They are one of the most common snakes in urban North America due to their ability to survive in small pockets of habitat.
Physical Description
Small, slender snake typically brown to grayish-brown. It features two parallel rows of small dark spots bordering a lighter-colored dorsal stripe. The head is relatively small with a dark spot under the eye and a dark temporal bar. Scales are keeled; pupils are round.
Size & Dimensions
The specimen in the image appears to be an adult, approximately 9 to 12 inches long. Typical adult range is 9–13 inches (23–33 cm), with a record maximum of roughly 20 inches.
Habitat
Generalist species found in forests, grasslands, and wetlands. They are highly adaptable to human-altered environments, frequently found in suburban backyards, city parks, and under debris in vacant lots. They prefer moist microhabitats.
Behavior & Temperament
Primarily nocturnal or crepuscular, though often active during the day in mild weather. They are secretive and docile. Defensive displays may include flattening the body to appear larger or releasing a mild musk from the cloaca, but they rarely bite.
Diet & Feeding
Specialized diet consisting primarily of soft-bodied invertebrates like slugs, snails, and earthworms. They use their specialized teeth and jaw structure to pull snails out of their shells.
Reproduction
Viviparous (gives birth to live young). Mating occurs in early spring, and females give birth to 5–25 young in late summer. Newborns are very tiny, often less than 4 inches long.
Venom & Safety
Venom Type
Non-venomous - no medically significant venom.
First Aid Advice
No medical intervention is required for a bite from this species. Wash the area with soap and water to prevent secondary infection. Reassurance and basic localized wound care are sufficient.
Look-alikes
Frequently confused with the Red-bellied Snake (Storeria occipitomaculata), which has a bright red belly and 3 light spots behind the head, or the Garter Snake (Thamnophis sirtalis), which is generally larger with more prominent longitudinal stripes.
Conservation Status
Least Concern (IUCN). They are one of the most common snakes in urban North America due to their ability to survive in small pockets of habitat.
Cultural Significance
Crucial ecological role as natural pest control in gardens, keeping populations of slugs and snails in check. Often serves as an entry-point species for amateur herpetologists due to their abundance in urban areas.
Notable Features
Highly adapted to urban 'micro-habitats' such as window wells and gardens. Their ability to extract snails from shells and their live-bearing reproduction are significant evolutionary traits for their niche.