▁Morgan ▁in ▁his ▁ 1 8 7 1 ▁work ▁Systems ▁of ▁Cons angu inity ▁and ▁Aff inity ▁of ▁the ▁Human ▁Family , ▁the ▁E sk imo ▁system ▁was ▁one ▁of ▁six ▁major ▁kin ship ▁systems ▁( E sk imo , ▁Hawai ian , ▁I ro qu ois , ▁Crow , ▁O ma ha , ▁and ▁Sud an ese ). ▁ ▁J oint ▁family ▁The ▁joint ▁family ▁system ▁places ▁no ▁distinction ▁between ▁pat ril ine al ▁and ▁mat ril ine al ▁relatives , ▁instead , ▁it ▁focus es ▁on ▁differences ▁in ▁kin ship ▁distance ▁( the ▁closer ▁the ▁relative ▁is , ▁the ▁more ▁dist in ctions ▁are ▁made ). ▁The ▁system ▁emphas izes ▁the ▁nuclear ▁family , ▁ident ifying ▁directly ▁only ▁the ▁mother , ▁father , ▁brother , ▁and ▁sister . ▁ ▁All ▁other ▁relatives ▁are ▁grouped ▁together ▁into ▁categories . ▁It ▁uses ▁both ▁classific atory ▁and ▁descript ive ▁terms , ▁differenti ating ▁between ▁gender , ▁generation , ▁line al ▁relatives ▁( rel atives ▁in ▁the ▁direct ▁line ▁of ▁descent ), ▁and ▁coll ater al ▁relatives ▁( blo od ▁relatives ▁not ▁in ▁the ▁direct ▁line ▁of ▁descent ). ▁The ▁E sk imo ▁system ▁is ▁defined ▁by ▁its ▁" c ogn atic " ▁or ▁" bil ater al " ▁emphas is ▁- ▁no ▁distinction ▁is ▁made ▁between ▁pat ril ine al ▁and ▁mat ril ine al ▁relatives . ▁ ▁Par ental ▁sib lings ▁are ▁distinguished ▁only ▁by ▁their ▁sex ▁( A unt , ▁Uncle ). ▁All ▁children ▁of ▁these ▁individuals ▁are ▁l ump ed ▁together