1. Neumann's (1913) description of the male of Ixodes alluaudi is enlarged
upon and the female, nymph and larva described for the first time.
2. It is shown that it is essentially a parasite of the shrew, which may, faut de mieux, infest fieldmice, gerbilles, vlei rats and golden moles.
3. Attention is drawn to the primitive coxae and to the sternal apparatus.
4. Its systematic affinities are discussed, and it is temporarily placed in the subgenus Exopalpiger Schulze (1935).