Snail eggs: Snails are oviparous animals. Generally speaking, snails do not lay eggs, but directly give birth to small snails, because the embry
Snail eggs: Snails are oviparous animals. Generally speaking, snails do not lay eggs, but directly give birth to small snails, because the embryonic development of snails and the development of young snails are completed in the mother.
Pomacea canaliculata eggs: Pomacea canaliculata is an oviparous animal, with round eggs and a diameter of about 2mm. It was pink or bright red when it was first laid, and the surface was covered with inconspicuous white powder. After 5 days, the eggs turn gray or brown.
First, the difference between snail eggs and snail eggs
1, Oncomelania hupensis an ovoviviparous animal, and its embryonic development and larval development are completed in the mother's body, so Oncomelania hupensis does not lay eggs, but directly produces small Oncomelania hupensis.
2. The eggs of Ampullaria canaliculata are about 2mm in diameter, which are round, pink or bright red when they just lay eggs, and the surface is covered with an inconspicuous white powder. After 5 days, the eggs of Ampullaria canaliculata turn gray or brown.
Second, the difference between snails and snails
1, Ampullaria gigantea: an oviparous animal, whose shell is approximately disc-shaped, large, yellowish brown or crimson, with ***5-6 spiral layers (the body spiral layer accounts for 89% of the shell height, and the spiral part is small), with a large and deep umbilical cord and no black frame at the mouth of the shell.
2. China snail: an egg-laying animal, its shell is slightly smaller than that of Pomacea canaliculata, and it is yellow-brown, with 6-7 layers of snail (the body snail layer accounts for 68% of the shell height, and the spiral part is larger), and the umbilicus is slit-shaped, with a black frame at the shell mouth.
3. Oncomelania hupensis: an oval animal with a shell slightly smaller than that of China Oncomelania hupensis, yellow-brown or yellow-green, with 6-7 spiral layers (the body spiral layer accounts for 68% of the shell height, and the spiral part is larger), with a slit in the umbilical hole and a black frame at the shell mouth.