Bermuda reinsurance companies yesterday released a wave of announcements on the costs of the deadly hurricane season, which saw four hurricanes sweep through the Caribbean and Florida.

Because of different styles of reporting losses, it is not possible to determine exactly how many claims Bermuda-based reinsurers will have to meet.

But the storms are certain to cost the Bermuda market hundreds of millions of dollars, if not billions.

Yesterday Arch Capital Group Ltd. said it estimated that net losses, on an after-tax basis, resulting from Hurricanes Charley, Frances, Ivan and Jeanne and Typhoon Songda will impact 2004 third quarter net income by approximately $140 million, or $1.90 per diluted share. The company said it expects to report ?positive operating income? for the quarter.

Endurance Specialty Holdings Ltd. said on Monday night that estimated aggregate potential claims from the Atlantic hurricanes, net of reinsurance recoverables, reinstatement premiums, and taxes would total approximately $115 million.

The $115 million reported loss amount included Endurance?s previously reported loss estimates for hurricanes Charley and Frances and encompasses loss estimates for Endurance?s US and Caribbean exposures.

And PXRE yesterday said it expected to incur claims from the Atlantic hurricanes, net of reinsurance recoverables, reinstatement premiums, and taxes, of $80 to $105 million.

Max Re Capital Ltd estimated its third quarter earnings will be negatively impacted by $20 million to $25 million as a result of the four hurricanes.