3 eggs at true relative size, from the 30.16 mm egg of the Midland Painted Turtle to the 37.5 mm egg of the Blanding's Turtle.
About this collection. 4 turtle eggs so far; we are adding more. Sizes come from published measurements wherever we found them; shapes and colours are our best estimates (how accurate these eggs are).
Blanding's Turtle
Emydoidea blandingii
- 37.5 × 23.5 mm
- Clutch: 3–19 eggs
Dull white, hard-shelled and elliptical.
Sources of information
- Size
- Average of 73 eggs: Pappas, Brecke & Congdon 2000, The Blanding's turtles (Emydoidea blandingii) of Weaver Dunes, Minnesota, Chelonian Conservation and Biology 3(4): 557–568, pp. 562–563.
Agrees with: Congdon et al. 2008, Emydoidea blandingii – Blanding's Turtle, Chelonian Research Monographs 5: 015.1–015.12. - Description
- Turtles of the World (Naturalis): Emydoidea blandingii.
Agrees with: Pappas, Brecke & Congdon 2000, The Blanding's turtles (Emydoidea blandingii) of Weaver Dunes, Minnesota, Chelonian Conservation and Biology 3(4): 557–568. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Midland Painted Turtle
Chrysemys picta marginata
- 30.16 × 19.05 mm (approx.)
- Clutch: 3–14 eggs
White, smooth and slightly pitted; flexible when laid, hardening as it takes up water.
Sources of information
- Size
- Virginia Department of Wildlife Resources: Midland Painted Turtle.
Agrees with: Hammerson 1999 (NatureServe), via Encyclopedia of Puget Sound: Chrysemys picta. - Description
- Virginia Department of Wildlife Resources: Midland Painted Turtle.
Agrees with: Hammerson 1999 (NatureServe), via Encyclopedia of Puget Sound: Chrysemys picta; Ernst 1971, Sexual cycles and maturity of the turtle, Chrysemys picta, Biological Bulletin 140(2): 191–200. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Northern Map Turtle
Graptemys geographica
- 36.4 × 22.9 mm
- Its colour follows its family (the eggs of all its relatives are alike); we haven't found a description of this species' own egg yet.
- Clutch: 6–20 eggs
Elliptical, with a flexible, leathery shell.
Sources of information
- Size
- Average of 180 eggs: Vogt, Bulté & Iverson 2018, Graptemys geographica – Northern Map Turtle, Chelonian Research Monographs 5: 104.1–104.17.
Agrees with: Virginia Herpetological Society: Northern Map Turtle. - Description
- Vogt, Bulté & Iverson 2018, Graptemys geographica – Northern Map Turtle, Chelonian Research Monographs 5: 104.1–104.17.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Tell us about this egg
A description, measurements, a photo or a source (a book, paper, museum record or website) all help. We check every message and update the egg.