Viruses
these are our viruses
spherical
Structural determinations of spherical viruses have so far been limited to the capsid shell with icosahedral symmetry.
complex
A special type of icosahedral shape, called a prolate, is a variant of the icosahedral viral shape and is found in bacteriophages
helical
long rigid/flexible rods consisting of capsomeres arranged helically around NA (form hollow capsid tube)