PORTHDINLLAEN.—The schooner Miss Hughes, of and from Carnarvon, laden with slate for London, showed signals of distress, as she was dragging her anchors and drifting towards the rocks at Nevin Point, in a moderate gale from N.'W. and rough sea on the 16th June. The crew of the Life-boat George Moore, put off to her assistance at 9 A.M., and having been engaged by the master to render assistance they placed two men on board, and the vessel was taken to a safe position..