The black-knobbed map turtle (Graptemys nigrinoda), formerly known as the black-knobbed sawback, is a small to medium-sized aquatic turtle with light gray skin. Some of the most distinguishing characteristics of the black-knobbed map turtle, and the Graptemys genus, are the protruding "spikes" on the turtle's carapace. This species inhabits mainly the fall lines of rivers in the Mobile Bay drainage, in Alabama and Mississippi.
From Wikipedia, under CC BY-SA 4.0.
Is it venomous or poisonous?
We have no record of Black-knobbed Map Turtle being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.
Easily confused with
- Graptemys oculifera
- Graptemys barbouri
- Graptemys sabinensis
- Graptemys pulchra
- Graptemys ernsti
- Graptemys ouachitensis
Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Testudines
- Family
- Emydidae
- Genus
- Graptemys
- Species
- Graptemys nigrinoda
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