Toad or Frog – How to Tell the Difference

Bufonidae Rhinella marina cane toad

The Cane Toad Rhinella marina continues its’ march across Australia, spreading from its original introduction sites on the tropical north Queensland coast. It’s now seen regularly in southern inland Queensland towns like Roma, Injune and Miles. 

Cane toads are often confused with some of our larger kinds of native frogs. This sometimes leads people to kill frogs in the mistaken belief that they are getting rid of a pest.

The frog most likely to be confused with toads is the very large New Holland Frog or Eastern Snapping Frog Cyclorana novaehollandiae, which is common in Outback Queensland (see photo).

 The photo’s here show a typical cane toad and some of the native frogs that are likely to be confused with toads. Have a look at them and pick the differences!

 Tips for Toad Identification

 Size: An adult toad is often much bigger than even the largest native frog. However, some frogs can be quite large so overlap occurs.

Bufonidae Rhinella marina cane toad

Cane Toad

 

 Skin: Toads have obviously warty, dry-looking skin, with large glands over the shoulders. Our native frogs may have some glandular lumps and bumps but their skin usually has a glossy moist appearance.

 Call: The toad’s call is distinctive and unlike any that of any of the frogs; a rapid series of popping notes that can remind you of a single cylinder engine – “du-du-du-du-du-….”.

Eggs: Toads lay their eggs in long strings under the water surface. Frogs’ eggs are usually in rounded masses, and in some species the egg masses are foamy so they float in the water.

 Tadpoles and young: Toad tadpoles are jet black all over, while frog tadpoles have pale or translucent bellies. Young toads to about 10mm could be confused with small frogs but their habit of gathering in large numbers around the water’s edge helps identify them.

 Frogs of southern inland Queensland that can be confused with the Cane Toad.

 Adults

New Holland Frog or Snapping Frog Cyclorana novaehollandiae, the largest frog in this area. 

New Holland Frog or Snapping Frog Cyclorana novaehollandiae

 

 

 

 

 

 

Pobblebonk frog Limnodynastes terraereginae

Pobblebonk frog Limnodynastes terraereginae

 

 

 

 

 

 

Ornate burrowing frog Platyplectrum ornatum 

Ornate burrowing frog Platyplectrum ornatum

 

 

 

 

 

Juveniles

The small burrowing species e.g. chubby gungan Uperoleia rugosa juveniles of Cyclorana spp. and the ornate burrowing frog 

Juvenile frog

Juvenile frog

 

With practice all these can be separated from the toad using the features described above.

 

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