This paper details the investigations of a series of novel sulphur-containing "banana-shaped" liquid crystals, B-n(S) (n = 8-10). The materials exhibit a B-3 phase and also a phase with a "spiral-domain" texture similar to that of the "B-7" phase. The mesomorphic properties of a series of binary mixtures between the different homologues are reported. Results from current response measurements between pure B-9(S) and a 1:1 binary mixture of B-8(S) and B-10(S) are also presented.