Examination of recently collected Namibian material assigned to Lycophidion hellmichi Laurent revealed that it is composite. The northernmost specimen is the first recorded male of L. hellmichi and has a bilobed hemipenis like L. capense. Another male from the Skeleton Coast National Park also has everted hemipenes, but these are trilobed as in the eastern species L. variegatum Broadley. This snake and all other specimens from south of latitude 18°S which superficially resemble L. hellmichi are described as a new species, Lycophidion namibianum, which agrees with L. variegatum in having the first supralabial separated from the postnasal. When skulls of the different forms were compared, it was found that the skull of the new species resembles that of L. variegatum in having moderately developed parietal crests that are well separated posteriorly, whereas L. capense capense has strong parietal crests that merge posteriorly and true L. hellmichi has only weak convergent crests restricted to the back of the skull. The dwarfed western populations of L. capense multimaculatum exhibit paedogenesis, retaining throughout life a skull lacking parietal crests (as in subadult L. c. capense). Keywords: Colubridae, Lycophidion, Namibia, New species, Serpentes, Systematics.