Macro-Somali languages
The Macro-Somali or Somaloid languages, or (in the conception of Bernd Heine, who does not include Baiso), Sam languages, are a branch of the Lowland East Cushitic languages. They are spoken in Somalia, Djibouti, eastern Ethiopia, and northern Kenya. The most widely-spoken member is Somali.

Languages
The primary division is between Baiso and Rendille versus the remaining languages, for which Heine proposes the terms "Eastern Sam" or "Dad".

Somaloid
 Baiso
 Rendille
 Eastern Sam
 Boni
 Girirra
 Somali languages

Sound correspondences
The following sound correspondences hold between Rendille, Aweer and Somali:

The Eastern Sam or Dad group is characterized by the following four changes:
 The voiceless stops *t, *c, *k became voiced *d, *j, *g when following a vowel.
 Elsewhere, *c becomes a fricative *ʃ.
 *z > *d.
 *m > *n at the end of a word. 

In Boni, several consonant clusters simplify:
 *mb, *nɗ, *ng > m, n, ŋ
 *ns > s
 *ng before *i > *ndʒ > *nʃ > ʃ

Notes

References
 

East Cushitic languages