FISHGUARD.—While a heavy gale was blowing from the S.E. with a rough sea and snow on the afternoon of the 12th January, signals of distress were shown by the smack Prosperity and ketch Mercy, both of Carnarvon, which were riding at anchor in the roadstead. The crews of both vessels, six men in all, were taken into the Life-boat and landed at Fish guard as a precautionary measure, there being a danger of the craft parting their cables or meeting with other casualty in the storm then raging..