They are split into 'forwards' and 'backs'. They are below, along with common alternative names and their jersey number.
Forwards
1. Loosehead Prop
2.Hooker
3. Tighthead Prop
4. Lock
5. Lock
6. Blindside Flanker 7.Openside Flanker
8.Number 8/Eightman/Lock forward
Backs.
9. Scrum-half
10. Fly half/Out-half
11. Left wing
12. Inside/first centre
13. Outside/second centre
14. Right wing
15. Fullback
no# 15 is a full back in rugby union
15 players in a rugby team
There are 13 players on the pitch in each rugby league side, as opposed to 15 in rugby union teams. The difference is in the forwards. Rugby union teams have 8, but rugby league teams survive with only 6.
There are 15 players from each team on the field during a rugby union match.
Tommy Smyth - rugby union - died on 1928-05-15.
Eddie Thompson - rugby union - was born on 1906-12-15.
Matt Smith - rugby union - was born on 1985-11-15.
James Webb - rugby union - was born on 1863-01-15.
John Arthur - rugby union - died on 1921-03-15.
Dawson Turner - rugby union - was born on 1846-12-15.
Alun Lewis - rugby union - was born on 1956-01-15.
John Solomon - rugby union - was born on 1929-10-15.