The greater bulldog bat, also called the fisherman bat, is a relatively large bat. These bats have a wingspan of almost three feet (1 meter), and a combined head and body length ranging from 4.6 to 5 inches (11.9 to 12.7 centimetres) Males are larger than females. Their feet and claws are much larger than the lesser bulldog bats, and their claws are very sharp. The fur is short and repels water.