However , it is typically smaller , at only up to 2.1 m ( 6.9 ft ) in length .
The Guiana dolphin ( Sotalia guianensis ) is frequently described as looking similar to the bottlenose dolphin .
It is typically smaller , at only up to 2.1 m ( 6.9 ft ) in length .
The Guiana dolphin ( Sotalia guianensis ) is frequently described as looking similar to the bottlenose dolphin .