An examination of Leptotyphlops material in the Transvaal Museum, from South-West Africa, has disclosed the presence there of a slender form, in which the first or anterior upper labial is absent and which is in no way related to Leptotyphlops labialis, the only other form from South-West Africa lacking the first upper labial. On the other hand, it would appear to be the form referred to scutifrons by certain authors, who have assumed that the first or anterior upper labial is absent in scutifrons, in spite of the fact that Peters, in his original and subsequent descriptions of the latter, specifically states that the first upper labial - though small - is present. Under the circumstances all those specimens from South-West Africa, lacking the first upper labial and previously assigned to scutifrons, are now regarded as belonging to the newly erected species Leptotyphlops occidentalis.