Bacteria shapes

There are 4 basic shapes that bacterial cells adopt. They can be either :

1)rod shaped

2)spirilla

3)vibrios

4)spherical

Reference:This picture is taken from the lecture notes of NYP's module Microbiology A and edited.

Confused by what the technical terms mean?

Dont worry,further explanations are given below. :)

~Spherical bacteria are referred to as cocci (singular: coccus),

~Spirilla(helical shape like corkscrew)
~Vibrios bacterium adopt the shape of curve rods

~Rod shaped bacteria are known as bacilli (singular: bacillus).