MaleSpicFIG 2: Epifluorescent images of the spicules.

A. Transgenic animals expressing the cat-2::GFP reporter gene a socket cell of the adult tail, lateral view. (Strain source: R. Lints and S.W. Emmons.) (Cell identification by L.I. Jiang and P.W. Sternberg.)
B. Transgenic animals expressing the unc-55::GFP reporter gene, dorsal view. (Strain source: G. Shan and W.W. Walthall.)