Ambystoma jeffersonianum Caudata Ambystoma jeffersonianum Jefferson's Salamander Search for another Amphibian or Reptile. Search for amphibians and reptiles by Illinois county. Go to the INHS Amphibian and Reptile Collection page. Search the INHS collections data for this species by clicking on the button below. Search the Type Specimen Data for this species by clicking on the button below.
Yellow shade indicates verified sighting.
Head distinctly wider than those of blue-spotted and smallmouth salamanders, snout relatively longer and broader, and legs and toes longer. Adpressed limbs overlap by 2-4 costal folds. Costal grooves 12-13. Cloacal walls of breeding male greatly swollen with glands that produce spermatophores. Larva has a large head, unpigmented throat, long, slender toes, and intensively pigmented tail fin.