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Rio Grande Leopard Frog vs. Southern Leopard Frog

The owner's pair: their ranges overlap in central and southern Texas (records shared, review/b2-overlap.js). In California only the Rio Grande lives here (introduced). A: Plain, with no pale centre spot in the Rio Grande Leopard Frog; a pale spot in the middle in the Southern Leopard Frog. B: Break and jog inward near the hip in the Rio Grande Leopard Frog; unbroken from the eye to the hip in the Southern Leopard Frog. C: Many sharp dark spots on a pale greenish-tan or grey back in the Rio Grande Leopard Frog; fewer, rounder spots on a green or brown back in the Southern Leopard Frog.

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Rio Grande Leopard Frog

Lithobates berlandieri

Southern Leopard Frog

Lithobates sphenocephalus
Rio Grande Leopard Frog vs. Southern Leopard Frog: comparison sheet with the differences marked

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

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