marathon not connected to mesos master

[David J. Palaitis]

starting marathon ...

./bin/start --http_port 5150 --https_port 5151 --master
"zk://abc.xxx:2181/mesos,def.xxx:2181/mesos,ghi.xxx:2181/mesos,ghi.xxx:2181/mesos,hij.xxx:2181/mesos"
--zkhosts abc.xxx.pit:2181

I see a zk connection established:

2014-04-10 15:30:07,047:38588(0x7fded64f0910):ZOO_INFO@check_events@1750:
session establishment complete on server [WWW.XXX.YYY.ZZZ.:2181],
sessionId=0x244c63e923d0002, negotiated timeout=10000

but the framework is not listed.