The 23-year old has signed a contract initially for a month with the option of an extension or even a permanent deal in the summer.
Pirates boss Paul Trollope admitted the club had been after Jones for a while and was very happy to welcome him to Memorial Stadium.
"We are very pleased to welcome Daniel to the club as he's a player we have tracked and monitored for a long time," Trollope told the club's official website.
"We've had a number of injury issues in the full-back positions over the last few weeks and we are pleased that we have been able to add him to the squad.
"He's a young player who brings all the attributes that we look for in that he's a good player, quite tall, has good pace and a very good left foot. In addition, he can pass it and get forward as well as undertaking his defensive duties.
"He's here for a month, initially, obviously with a view to extending it for longer and with him being out of contract in the summer maybe we can look at it for next year if all goes well.
"He's trained with us on Saturday and Sunday in preparation for the game against Charlton, which is a bonus for us, and he's fitted into the group well."