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Sexing Box Turtles

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by

Ashley LaVere

on 31 December 2014

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Transcript of Sexing Box Turtles

Sexing
Box
Turtles

Traits to look For:
1. Color on the face/forelegs
2. Eye color
3. Claws on hind foot
4.Shape of plastron
5. Shape of overall carapace
6. Tail length
7. Marginal Scutes
CAUTION!!
Due to variability of sex characteristics in box turtles, these traits are not always reliable for sex determination.
If unsure about the sex of a turtle, do not hesitate to mark "Unknown" (UK) on the data sheet.
Color on Face or Forelegs
and Eye Coloring
FEMALES
Darker
Dull Coloring
Brown Eyes
MALES
Bright yellow/orange/red coloring
Usually bright red eyes
Claws on Hind Foot
FEMALES
Straighter
Thinner
MALES
Curved
Thicker
Hind claws used to hold onto female during mating
Shape of Carapace
What is a carapace?
A carapace is the hard dorsal (top) shell of the turtle.
Can you count the carapaces?
FEMALES
More curved, producing a larger and higher dome.
MALES
Less curved, producing a smaller, lower dome.
Shape of Plastron
What is a plastron?
A plastron is the hard ventral (bottom) shell on a turtle.
FEMALES
MALES
Tail Length
FEMALES
MALES
Vent is located above the edge of the carapace.
Vent
under-edge of carapace
Vent is located below the edge of the carapace.
Vent
Under-edge of carapace
Marginal Scutes
FEMALES
Posterior marginal scutes not flared
MALES
Posterior Marginal Scutes Flared
QUIZ!
MALE
FEMALE
CANNOT DETERMINE SEX OF JUVENILES!
Looking at the shape of the carapace,
Which is the female?
Which is the male?
Looking at eye and body coloring,
Is this a male or female?
Can you determine the sex of these hatchling box turtles?
The section of the plastron posterior to the hinge is flatter with minimal to no indentation
Hinge
Section of the plastron posterior to the hinge is characterized by a circular indentation used to stabilize the male during copulation.
Hinge
Indentation
MALE
HOW TO USE:
Use the two arrows at the bottom of the screen to navigate back and forth through the presentation. ENJOY!
Male
Female
Full transcript