Shankas

1. The eastern wind (hanuman) is the same shining devadatta shANkha of arjuna, 
2. the southern wind (nRsiMha) is sahadeva's maNipuSpaka shANkha, 
3. the western wind (garuDa) is yudhiSThira's anantavijaya shANkha, 
4. the northern wind (varAha) is bhIma's pauNDra shANkha , and 
5. the north-eastern wind (hayagrIva) is nakula's sughoSa shANkha.

Also 

1. Anantavijaya — name of King Yudhisthira’s conchshell, meaning “Unending victory.”
2. Devadatta — the conch of Arjuna which was obtained by Maya Danava from Varuna. The name means, “God given.”
3. Manipuspaka — name of Sahadeva’s conch-shell, meaning “Jewel bracelet.”
4. Paundra — the terrific conchshell of Bhima.
5. Sughosa — the conchshell of Nakula, meaning “Making a pleasant sound.”