Families of Asteroids
Ref: Y. Kozai, 1982: table II (p. 343); Count: [*] 66f;1618
   Family [Prymno Family]
  Ref: Y. Kozai, 1982: table II (p. 343) [inferred name]; Count: [*] 13
     (Minor planet) Kustaanheimo
    Ref: Y. Kozai, 1982: table III (p. 348); Count: -