Lungfish doesn't need limbs to walk

African lungfish use pelvic fins for walking

New Scientist vol 212 no 2843, December 17 2011 p16

Heather King from Chicago University, Illinois, has found that African lungfish use their pelvic fins for walking on lake beds. These fins have a similar shape to those used by ancient vertebrates when they initially walked on land. Fins may have been used for walking prior to vertebrates evolving more specialised limbs.