today is distinguished 5 types of the type Stenella, this in all subtropical and tropical seas at home is.
Shape The body of the narrow-beak-dolphins is slim and becomes 1,2-3 m long. The beak is as the name already indicates, narrowly and can carry up to 260 teeth. The animals have 15-20 cm long flippers, 18-30 cm high back-Finns and flukes of 50 cm of span. The biggest type become the blue-white dolphin (Stenella coeruleoalba), who gone round the bend, over 100 kg heavily. Narrow-beak-dolphins are inhabitants of the open seas mainly where they carry off fish, Kalmare and partially also shrimps.
Types 2 types are among the stain-dolphins, whose name go back, that clearly stained most representatives appears:
1. Slim-dolphin (Stenella attenuata), occurrences in the east and west-Pacific, in the Indian ocean and in the Atlantic; presumably, they belong at all to the most frequent whales; the continuance in the East-Pacific is estimated at 2 million animals.
2. Rein-dolphin (S). frontalis. Occurrences are known only from the Atlantic ocean; it is regarded as most frequent dolphin in the golf from Mexico and before the southeast-coast of the USA.
Belong to the type Stenella to the further one:
3. Blue-white dolphin (S). coeruleoalba; it occurs in all moderately warm and tropical seas of the earth; the continuance in the East-Pacific is estimated at 1,6 million animals.
Two further types are called "nutcases":
4. Ostpazifischer dolphin (S). longirostris; it occurs in the tropical and subtropical waters of all oceans; the continuance is estimated at 600 000-800 000 animals.
5. Clymene dolphin (S). clymene; it occurs only in the tropical and subtropical regions of the Atlantic; until now, one found only few copies.
Scientific name: