Erythrocytes Studied in Pictures.

http://en.wikipedia.org/wiki/Red_blood_cell

There is an immense size variation in vertebrate erythrocytes, as well as a correlation between cell and nucleus size. Mammalian erythrocytes, which do not contain nuclei, are considerably smaller than those of most other vertebrates.

Typical mammalian erythrocytes: (a) seen from surface; (b) in profile, forming rouleaux; (c) rendered spherical by water; (d) rendered crenate by salt. (c) and (d) do not normally occur in the body.

Scanning electron micrograph of blood cells. From left to right: human erythrocyte, thrombocyte(platelet), leukocyte.

The most common erythrocyte cell membrane lipids, schematically disposed as they are distributed on the bilayer. Relative abundances are not at scale.

Red blood cell membrane proteins separated by SDS-Page and silver stained 

Red Blood Cell membrane major proteins