Figure 2-2: Selected myoviruses. (a) Bacillus megaterium phage G, the largest myovirus known; note the spiral filament around the tail. (b) Giant unknown bacteriophage found in macerated debris of Bombyx mori ; note wavy tail fibers. Phage heads of this size are easily deformed. (c). Bdellovibrio bacteriovorus phage phi1402, the smallest myovirus known (isolated by B.A. Fane, Department of Veterinary Science, University of Arizona, Tucson, AZ). X 297,000; bar indicates 100 nm. Phosphotungstate (2%, pH 7.2) (a, b) and uranyl acetate (2%, pH 4.0) (c).