Georgetown Salamander vs. Jollyville Plateau Salamander

Their ranges meet north of Austin: a groundwater divide between the South Fork of the San Gabriel River and Brushy Creek separates the Georgetown Salamander (San Gabriel springs) from the Jollyville Plateau Salamander (Brushy Creek and the Jollyville Plateau). A: A distinct dark border along the edge of the tail fin in the Georgetown Salamander; no dark border on the tail fin in the Jollyville Plateau Salamander. B: Greyish, with brown and silvery flecks in the Georgetown Salamander; dark greenish-brown body; the tail bright yellowish-orange in the Jollyville Plateau Salamander. C: A broad, short head; big eyes with a gold iris in the Georgetown Salamander; a wide, yellowish head with a blunt snout in the Jollyville Plateau Salamander. Cave forms of both are pale with small eyes; the spring and the creek it drains to decide.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

More comparisons

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• Barton Springs Salamander vs. Jollyville Plateau Salamander

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