1
Narcotism, the craving for narcotic or stimulant drugs, and its subvariety, alcoholism, has been found most often among the thymocentrics.
2
He divided machines into their genera, subgenera, species, varieties, subvarieties, and so forth.
3
The careerist, or the man on the make, is of a thousand genera and species, varieties and subvarieties, with transition links between.