Head under the hole superorder hypotremata (skates Head) Taxonomic status (taxonomy | __ Animals | __ Chordate door | __ Vertebrate subphylum | __ Cartilage Pisces | __ Elasmobranch subclass 100 000 000 8 years ago, a similar shark skate, but in order to adapt to sea life and a high degree of expansion of the pectoral fin fish, long bodies into the sea sand, it slowly evolved into the present shape. The flat head fish body shape, or disc-shaped diamond. Extreme expansion of pectoral fin, along the side of the body directly to the head and torso with the head and Yu mutual healing, so that form diamond-shaped or disc-shaped fish. In the ventral mouth and nostrils, gill slits 5 pairs of ventral opening in the head, it is also known under the Hole. Eyes and blowhole in the back of the trunk and tail whip degenerate into a fine. Undersea habitat is a kind of camp life, cartilaginous fish, swimming ability is not strong, mainly by pectoral fins. Rays fan with a loop around the body as long pectoral fins, caudal fin degradation, like a thin long whip-like motion by the pectoral fins to move forward wave. Rays usually hidden in the sand, two shellfish, crabs and shrimp so close, then suddenly attack. Their teeth, like mortar, to grind anything, the back of Ministers with a toxic red thorns, people will be stabbed to death. Gill opening below the head, but the water holes in the top. Water for breathing through blowhole inhaled, often by mouth in the sand in order to avoid the gills is blocked. Teeth adapted to crush their catch - molluscs, crustaceans and occasionally to the fish. There are two types of this group is particularly interesting - stingrays and electric rays. Classes in the rays, caudal and dorsal fins are a little lost, like a small whip-like tail. The end of one or more serrated spines, the most dangerous of these spines can cause injury, damage may be slow to recover, but complications left. Electric rays have a smooth bare skin, some of the back muscles strong power to change the organ, this organ can be given a serious impact on the game, so faint. Stingray's tail also has electrical officer. Head pristiformes sawfish Ray-shaped head fajiformes Fen-shaped head myliobatiformes Electric rays present torpediniformes
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No. 2
Head under the hole Superorder Hypotremata (skates Head) Taxonomic status (taxonomy | __ Animals | __ Chordate door | __ Vertebrate subphylum | __ Cartilage Pisces | __ Elasmobranch subclass 100 000 000 8 years ago, a similar shark skate, but in order to adapt to sea life and a high degree of expansion of the pectoral fin fish, long bodies into the sea sand, it slowly evolved into the present shape. The flat head fish body shape, or disc-shaped diamond. Extreme expansion of pectoral fin, along the side of the body directly to the head and torso with the head and Yu mutual healing, so that form diamond-shaped or disc-shaped fish. In the ventral mouth and nostrils, gill slits 5 pairs of ventral opening in the head, it is also known under the Hole. Eyes and blowhole in the back of the trunk and tail whip degenerate into a fine. Undersea habitat is a kind of camp life, cartilaginous fish, swimming ability is not strong, mainly by pectoral fins. Rays fan with a loop around the body as long pectoral fins, caudal fin degradation, like a thin long whip-like motion by the pectoral fins to move forward wave. Rays usually hidden in the sand, two shellfish, crabs and shrimp so close, then suddenly attack. Their teeth, like mortar, to grind anything, the back of Ministers with a toxic red thorns, people will be stabbed to death. Gill opening below the head, but the water holes in the top. Water for breathing through blowhole inhaled, often by mouth in the sand in order to avoid the gills is blocked. Teeth adapted to crush their catch - molluscs, crustaceans and occasionally to the fish. There are two types of this group is particularly interesting - stingrays and electric rays. Classes in the rays, caudal and dorsal fins are a little lost, like a small whip-like tail. The end of one or more serrated spines, the most dangerous of these spines can cause injury, damage may be slow to recover, but complications left. Electric rays have a smooth bare skin, some of the back muscles strong power to change the organ, this organ can be given a serious impact on the game, so faint. Stingray's tail also has electrical officer. Head Pristiformes sawfish Ray-shaped head Fajiformes Fen-shaped head Myliobatiformes Electric rays present Torpediniformes