The Sixth Chapter of the Uttarakanda tells about how the devas, unable to withstand the torture of Malyavan, Mali and Sumali, the three sons of Sukesha, rushed to Lord Shiva and then to Lord Vishnu for protection.
Upon hearing this, Malyavan relates what happened to his brothers. In connection he says this:
Now I know Hiranyakashipu was killed by Lord Narasimha, Namuchi was killed together by Vishnu and Indra using sea foam, Kalanemi and Samhrada were killed during the Samudra Mathana battle.
But who are Radheya (the son of Radha), Bahumayi(I think this is a description of Radheya), Lokapala, Yamala and Arjuna (who as far as I know are Nalakubara and Manigriva who were freed during Krsnavatara Yugas later), Hardikya (isn't Kritavarma called Hardikya) and Shumbha and Nishumbha (who were killed by Durga)?
None of these asuras seem to be present prior to Malyavan (and he can't be predicting the future), so are they like some other asuras than those whom I have mentioned in brackets?
Most of all, who is Radheya, the son of Radha (NOT Karna)?