- 488. Rathlin-o-Birne Island, lat. 54° 39´ 47´´; one fixed light, visible 16 miles; circular tower, with dome, 63 feet high; erected 1856, altered 1864.
- 489. Killybegs, St. John´s Point, lat. 54° 34´ 8´´; one fixed light, visible 14 miles; 47 feet high; erected 1831.
- 490. Killybegs, Rotten Island, lat. 54° 36´ 51´´; one fixed light, visible 12 miles; 47 feet high; erected 1838.
- 491. Sligo Bay, Black Rock, lat. 54° 18´; one fixed light, visible 13 miles; lighthouse tower, 47 feet high; erected 1838.
- 492. Sligo Bay, Oyster Island, lat. 54° 18´ 5´´; two fixed lights, visible 17 miles; each tower 43 feet high; erected 1837.
- 493. Broadhaven, Gubacashel Point, lat. 54° 16´; one fixed light, visible 12 miles; 50 feet high; erected 1855.
- 494. Eagle Rock, lat. 54° 17´; two fixed lights, visible 20 miles; one 87 feet, the other 64 feet high; 132 yards distant.
- 495. Black Rock, lat. 54° 4´ 10´´; revolving light, with flash every 30 seconds, visible 23 miles; circular tower, 50 feet high; erected 1864.
- 496. Blacksod Point, lat. 54° 5´ 54´´; one fixed light, visible 10 miles; granite tower and dwelling, 41 feet high; erected 1866.
- 497. Clare Island, lat. 53° 49´ 30´´; one fixed light, visible 27 miles; 39 feet high; erected 1806.
- 498. Inishgort, lat. 53° 49´ 34´´; one fixed light, visible 10 miles; 26 feet high; erected 1827.
- 499. Slyne Head, Illaunimmul Island, lat. 53° 23´ 58´´; two lights, one revolving every 2 minutes, visible 15 miles; one fixed, visible 14 miles; each tower 79 feet high, 142 yards apart; erected 1836.
Galway Bay—Nos. 500 to 502.
- [500. Eeragh Island, West Point, lat. 53° 8´ 55´´; one light, revolving every 3 minutes, visible 16 miles; circular tower, 101 feet; erected 1857.
- 501. Inisheer, South Point, lat. 53° 2´ 40´´; one fixed light, visible 15 miles; circular tower, 112 feet high; erected 1856.
- 502. Mutton Island, lat. 53° 15´ 13´´; one fixed light, visible 10 miles; 34 feet high; erected 1817.]
River Shannon—Nos. 503 to 507.
- [503. Loophead, lat. 52° 33´ 38´´; one fixed light, visible 22 miles; circular white tower, 75 feet high; erected 1853.
- 504. Kilcradan Point, lat. 52° 34´ 47´´; one fixed light, visible 16 miles; 43 feet high; erected 1824.
- 505. Scattery Island, Rinana Point. Now building.
- 506. Tarbert, Rock, lat. 52° 35´ 30´´; one fixed light, visible 13 miles; 54 feet high; erected 1834.
- 507. Beeves, Rock, lat. 52° 39´; one fixed light, visible 10 miles; 40 feet high; erected 1854.]
- 508. Tralee, Samphire Island, lat. 52° 16´ 14´´; one fixed light, visible 5 miles; circular lighthouse, erected 1834.
- 509. Tearaght Island, lat. 52° 4´. Now building. Will be lighted, probably, in the autumn of 1870.
- 510. Valentia, Cromwell´s Fort, lat. 51° 56´; one fixed light, visible 12 miles; lighthouse 48 feet high; erected 1841.
- 511. Skelligs Rock, lat. 51° 46´ 14´´; two fixed lights, the upper visible 25 miles, and lighthouse 48 feet high; the lower, visible 18 miles, and 46 feet high. The upper will be extinguished when Tearaght is completed.
- 512. Calf Rock, lat. 51° 34´ 10´´; one light, flashing every 15 seconds; visible 17 miles; circular tower, painted red, with white belt; 102 feet high; erected 1866.
- 513. Bantry Bay, Roancarrig Island, lat. 51° 39´ 10´´; one fixed light, visible 12 miles; circular tower, 62 feet high; erected 1847.
- 514. Crookhaven, Rock Island Point, lat. 51° 28´ 35´´; one fixed red light, visible 10 miles; lighthouse, 45 feet high; improved 1867.
