Fig. 8. viductal epithelium of Salamandra atra. a-b: cross l sections of the posterior oviductal epithelium of an ovulating S. atra (a, x 75; b, x 756). c: Epithelium of a pregnant female l x 756). d: Epithelium of alate-pregnant female with fully met- t amorphosed young (x756). e-f: PAS stained section of epithe- ova (3-6 mm dia), as have some oviparous species, and viviparous species have the smallest ova at 1-2 mm dia (Wake, '77a, and unpubl.). Egg number is reduced in caecilians in general (approximately 50 in oviparous species with the greatest numbers;