Ashvakarna

九山八海 The nine cakravāla, or concentric mountain ranges or continents, separated by eight seas, of a universe.
The central mountain of the nine is:

Sumeru 須彌 and around it are the ranges

Khadiraka 佶提羅,
Īṣādhara 伊沙陀羅,
Yugaṃdhara 遊乾陀羅,
Sudarśaṇa 蘇達梨舍那,
Aśvakarṇa 安濕縛竭拏,
Nemiṃdhara 尼民陀羅,
Vinataka 毘那多迦,
Cakravāda 斫迦羅; v. 七金山.

The Abhidharma Kośa gives a different order:

Sumeru,
Yugaṃdhara,
Īṣādhara,
Khadiraka,
Sudarśana,
Aśvakarṇa,
Vinataka,
Nemiṃdhara, with an
"iron-wheel" mountain encompassing all; there are also differences in the detail.

Source

mahajana.net