Lord Kṛṣṇa blew His conchshell, called Pāñcajanya; Arjuna blew his, the Devadatta; and Bhīma, the voracious eater and performer of herculean tasks, blew his terrific conchshell, called Pauṇḍra.
the conchshell named Pancajanya
Hrsikesa (Krsna, the Lord who directs the senses of the devotees)
the conchshell named Devadatta
Dhananjaya (Arjuna, the winner of wealth)
the conch named Paundra
blew
maha-sań
the terrific conchshell
one who performs herculean tasks
the voracious eater (Bhima).