General identifying descriptions of the related crystalline varieties are:

A closely related variety called Emghedeshie was spoken at Agadez, but is now extinct.

There is a movement among speakers of the closely related varieties of Northern Berber to unite them under a standard language.

The most closely related variety is Sutsilvan, which is spoken in the area located to the east.

Dried lima beans are sold in two sizes, baby and large, which are two related varieties with a similar taste.

See Ekoka ǃKung for a related variety with a somewhat larger click inventory.

Historically, they spoke Ainu and related varieties.

A language or language variety is said to be conservative if it has fewer innovations (in other words, more conservative forms) than related varieties do.

The present study therefore falls into the less well-researched area of code switching between closely related varieties, and there are some special problems associated with this.

Closely related varieties are listed on the same line.