"Sedem Animæ", &c.

Will any of your correspondents inform me where the following quotation is taken from:— "Sedem animæ in extremis digitis habent." It will be found in Burton's *Anatomy of Melancholy*, folio edition (7th), p. 55., and in the 8vo. edition of 1837, vol. iv. p. 80. Burton cites it as from Sallust, but the verbal index of that author has been consulted in vain for it.