Cname error

[Benjamin John]

Aug  5 18:33:33 omega named[322]: dangling CNAME pointer
(88.88/29.92.220.209.in
-addr.arpa)             


what does this mean ?

here's the conf file

zone "88/29.92.220.209.in-addr.arpa" in {  <- whats subnetted to me
(209.220.92.88 - 95)
        type master;                      
        also-notify {                     
                209.220.92.94;            <- my primary DNS
                207.155.183.72;           <- my secondary
        };                                
        file "db.209.220.92";             
};                                        


and here's db.209.220.92.

88/29.92.220.209.in-addr.arpa.  IN SOA ns.firstconsulting.net.
root.firstconsulting.net.
(                                                                      
                1999033030      ;
Serial                                        
                10800           ; Refresh after 3
hours                         
                3600            ; Retry after 1
hour                            
                604800 )        ; Expire after 1
week                           
                                                                                
   IN NS
ns.firstconsulting.net.                                                
   IN NS
nameserver.concentric.net.                                             
                                                                                
90 IN PTR
alpha.firstconsulting.net.                                            
91 IN PTR
genesis.firstconsulting.net.                                          
94 IN PTR
omega.firstconsulting.net.                                            
89 IN PTR
router.firstconsulting.net.