Blanding’s Turtle

Emydoidea blandingii


Image of a blanding's turtle
Blanding’s turtle has an oval, moderately high-domed upper shell and a long head and neck. This medium-sized turtle is endangered in Missouri.
MDC Staff
Species of Conservation Concern

Emydidae (basking, marsh, and box turtles) in the order Testudines (turtles and tortoises)


Blanding's turtle is a medium-sized turtle with an oval, moderately high-domed upper shell and a long head and neck. The upper shell may be dark brown or black with many yellow spots or bars. The lower shell is brownish yellow with a large, dark-brown blotch on the outer portion of each scute, and the forward third is hinged and movable. Head and limbs are brown and yellow. The upper jaw may be covered with black pigment resembling a mustache. The chin and underside of neck are usually bright yellow.


Upper shell length: 5 to 7 inches.

Habitat and conservation

This semiaquatic turtle may spend much of its time in shallow water along the edge of marshes, walking about on land, or basking in the sun on logs. Preferred habitat includes natural marshes and river sloughs, but this species also may live in ponds and drainage ditches.


Blanding’s turtles eat crayfish and a variety of aquatic insects, snails, small fish, frogs, and aquatic plants.

Blanding's Turtle Distribution Map
Distribution in Missouri

Apparently only in the extreme northeastern corner of our state.


Listed as Endangered in the state of Missouri; a Species of Conservation Concern. This species was first discovered in our state in 1965. The total range of this species is centered on the Great Lakes, but it is listed as endangered in most places it occurs, due to limited numbers, a reduction and fragmentation of natural habitats, and heavy losses from nest predators, road kills exacerbated by human development of rural areas, and a very long generation time (36–47 years).

Life cycle

In our state, this species is active from late March to early October. Courtship and mating occur in April and early June. Females move overland to select a nesting site with sandy, well-drained soil and good exposure to the sun. A clutch of 6–15 eggs is normally laid in June. Hatching occurs in September, with newly emerged young measuring 1¼ inches in shell length.

Human connections

Although many people think of an animal’s value only in terms of its direct economic imprint on human affairs, the science of ecology shows that each component of the natural community plays a unique and important role. Valuing nature means valuing even the smallest plants and animals.

Ecosystem connections

Blanding’s turtles help control populations of the relatively small animals they eat. But many predators, including raccoons and foxes, eat them, easily following the turtles’ relatively strong scent trails. The turtles have extra problems where raccoons tend to concentrate near human homes.