Fig. 3. Diameters of single fibers (mean ± s.e.m.) for each of the different types of silks spun by Argiope argentata. Standard errors were calculated using individual spiders, rather than total numbers of fibers tested, as the sampling unit. See Table 1 for sample sizes. ac, aciniform; cp, capture spiral; mj, major ampullate; mn, minor ampullate; tb, tubuliform.