The main objective of this dissertation was to show that there are only two monomorphemic marker variants in Pulaar, i.e. a strong variant (the basis) and a weak variant (a shortened form, cf. 1.2.2), and that the distribution of these variants is almost always predictable on the basis of the lexical stratum. The weak and strong variants are derived phonologically at Stratum I and II respectively. The former are derived by means of a marker shortening rule (cf. (13) in 1.1.3). This rule applies to underly ing representations which are almost always identical to the strong variants (cf. 126.96.36.199).