Bullfrogs are also known as boisterous frogs and edible frogs.

Adult bullfrogs are generally between 70-170 millimeters in length, with a maximum of over 200 millimeters, making them one of the largest living frogs. The skin is usually smooth, without dorsal folds, and the muzzle is broadly rounded. The tympanum is about as large as the eye in females and significantly larger than the eye in males.

The bulbous fold runs from behind the eye around the top of the tympanic membrane to the axil, especially in males. The fourth toe is very long, and the webbing does not reach all the way to the end of the toe. Body coloration is often highly variable depending on the region.

Dorsal variations range from green to brown, but are mostly green. Often interspersed with brown spots, sometimes with a gray or brown reticulated pattern. The ventral surface is white, sometimes with gray spots, and in the throat of the adult, often with yellow stripes .

Origin and Distribution:

The bullfrog is native to North America, and is named for its loud and clear call that resembles a cow's bellow. It is rich in nutrients, delicious flavor, fast growth and strong environmental adaptability, and has been introduced to most countries in the world for breeding.

Bullfrogs were introduced into our country from Cuba in 1959, and began to be widely promoted in our country in the nineties. In recent years, bullfrogs have become one of the important famous aquatic products in China's aquaculture. Bullfrogs in China's Fujian, Guangdong, Zhejiang and other coastal areas have a large-scale farming, aquaculture production has increased year by year, the production of bullfrogs has reached 150,000 tons.