Subfamily: LUTRARIINAE H. & A. Adams, 1856

(3-4-4-0-21-3-1-0-0-0-0-0-0)
Ref. Abbott, 1974 p 491
Bernard, 1983 p 40
Lindner, 1977 p 111
Vaught, 1989 p 130
Vokes, 1980 p 137,245