According to the author, this list is the Dolgopolsky 1964 15. It deviates, however, both in the concept labels which were used in the Dolgopolsky 1986 and in the literal translation of Dolgopolsky's list. It is therefore much more likely that Trask quoted Dolgopolsky's list intermediately from Shevoroshkin 1991 23. Since this list is again a rather specific translation of Dolgopolsky's list, it explains why Trask's list of Dolgopolsky and Dolgopolsky's list deviate in the item «louse» which Trask (following Shevoroshkin) translates as «louse/nit».