May I Have Some Help Properly Identifying These Frogs? : r frogs Green Frog Lithobates clamitans Lithobates clamitansNorth American Green Frog Herps of Arkansas Green Frogs (Lithobates clamitans) are very territorial, especially the males. You can differentiate their sexes since they are dimorphic (showing observable differences in form, color, size, or structure between sexes). For example, Lithobates clamitans Alchetron, The Free Social Encyclopedia