Spermatozoa SEM

Here are four C. elegans spermatozoa. The one at left center has just started to form its pseudopod. (The colors in this scanning electron micrograph are artificial. Electron microscopy cannot reproduce true colors.)

Original, uncolorized images published in: Nelson, G.A., Roberts, T.M. and Ward, S. 1982. Caenorhabditis elegans spermatozoan locomotion: amoeboid movement with almost no actin. J. Cell Biol. 92: 121-131. Abstract