Cockspur Island Light and Potamidae

The lighthouse is situated on an islet off Cockspur Island at the south channel of the Savannah River near Lazaretto Creek, northwest of Tybee Island, Georgia. It is part of Fort Pulaski National Monument and can be reached from that site. The island is subject to tidal flooding and as a result transportation to the lighthouse is most often by small boat, but can be accessed by crossing a small body of water from Cockspur Island. This is approximately 4 to 5 feet (1.5 m) deep at low tide and does have a current, so crossing on foot or by swimming is not advisable.

Contents 1 Features 2 History 3 See also 4 References 5 External links

Features

The lighthouse is built on an oyster and mussel bed. This lighthouse is unique in that the base is shaped like the prow of a ship to reduce the impact of the waves on the structure. The lighthouse is open to the public although no official tours or accommodations are made. However, visitors to the area frequently access the beacon by kayak. The National Park Service cut a trail to the lighthouse through the brush in 2005 to allow visitors a closer vantage point. The trail begins on the northeast side of the fort and is about 0.8 mile (1.3 km) long. At low tide, hikers can get within approximately 200 yards (180 m) of the lighthouse. History

This lighthouse was initially built as a daymarker without lights to indicate the entrance to the South Channel of the Savannah River. Construction lasted from March 1837 to November 1839. By 1848 it was retrofitted with lights and reflectors. It housed a fixed white light from five lamps with 14 inch reflectors that shone 9 miles (14 km) at a height of 25 feet (7.6 m) above sea level. It was damaged by a hurricane in 1854. The larger replacement that was built in 1855 on the same foundation was designed by New York architect John S. Norris.

The light was extinguished for a time during the American Civil War during the battle that brought the defeat of Fort Pulaski. The lighthouse suffered little or no damage, even though it was in direct line of fire. It was relit in 1866.

On June 1, 1909, the light was finally extinguished, because the south channel was infrequently used, compared to the deeper and wider North Channel of the Savannah River. The United States Coast Guard relinquished control of this lighthouse to the National Park Service on August 14, 1958. Along with the entire National Monument, the lighthouse is listed on the National Register of Historic Places. Starting in 1995 and lasting until 2000, the upper portions of the lighthouse were restored, although the foundations still require protection from wave action and tidal erosion.

On March 18, 2007 at 7:30 p.m. the lighthouse was relit in a ceremony hosted by the National Park Service and the U.S. Coast Guard.

In early 2013 additional rocks were added around the lighthouse to protect its stability, from strong currents and high tide erosion. See also Florence Martus, The Waving Girl, famous sister of the lighthouse keeper.

Potamidae and Cockspur Island Light

Potamidae is a family of freshwater crabs. Its more than 650 species and nearly 100 genera are divided into two subfamilies — Potaminae around the Mediterranean Sea, on Socotra and eastwards to Northern India, and Potamiscinae in East Asia. Subfamily Potaminae Ortmann, 1896 Acanthopotamon Kemp, 1918 Alcomon Yeo & Ng, 2007 Himalayapotamon Pretzmann, 1966 Lobothelphusa Bouvier, 1917 Paratelphusula Alcock, 1909 Potamon Savigny, 1816 Socotra Cumberlidge & Wranik, 2002 Socotrapotamon Apel & Brandis, 2000 Subfamily Potamiscinae Bott, 1970 Acartiapotamon Dai, 1999 Allopotamon Ng, 1988 Amamiku Naruse, Segawa & Shokita, 2004 Aparapotamon Dai & G. X. Chen, 1985 Apotamonautes Dai & Xing, 1993 Artopotamon Dai & G. X. Chen, 1985 Aspermon Yeo & Ng, 2007 Badistemon Yeo & Ng, 2007 Balssipotamon Dang & Ho, 2008 Beccumon Yeo & Ng, 2007 Bottapotamon Türkay & Dai, 1997 Candidiopotamon Bott, 1967 Carpomon S. H. Tan & Ng, 1998 Cerberusa Holthuis, 1979 Chinapotamon Dai & Naiyanetr, 1994 Cryptopotamon Ng & Dudgeon, 1992 Daipotamon Ng & Trontelj, 1996 Dalatomon Dang & Ho, 2007 Demanietta Bott, 1966 Doimon Yeo & Ng, 2007 Donopotamon Dang & Ho, 2005 Dromothelphusa Naiyanetr, 1992 Eosamon Yeo & Ng, 2007 Erebusa Yeo & Ng, 1999 Esanpotamon Naiyanetr & Ng, 1997 Flabellamon Ng, 1996 Geothelphusa Stimpson, 1858 Hainanpotamon Dai, 1995 Heterochelamon Türkay & Dai, 1997 Huananpotamon Dai & Ng, 1994 Ibanum Ng, 1995 Indochinamon Yeo & Ng, 2007 Inlethelphusa Yeo & Ng, 2007 Insulamon Ng & Takeda, 1992 Iomon Yeo & Ng, 2007 Isolapotamon Bott, 1968 Johora Bott, 1966 Kanpotamon Ng & Naiyanetr, 1993 Kukrimon Yeo & Ng, 2007 Lacunipotamon Dai et al., 1975 Laevimon Yeo & Ng, 2005 Larnaudia Bott, 1966 Latopotamon Dai & Türkay, 1997 Lophopotamon Dai, 1999 Malayopotamon Bott, 1968 Mediapotamon Türkay & Dai, 1997 Megacephalomon Yeo & Ng, 2007 Mindoron Ng & Takeda, 1992 Minpotamon Dai & Türkay, 1997 Nakhonsimon Promdam, Nabhitabhata & Ng, 2014 Nanhaipotamon Bott, 1968 Neilupotamon Dai & Türkay, 1997 Nemoron Ng, 1996 Neolarnaudia Türkay & Naiyanetr, 1986 Neotiwaripotamon Dai & Naiyanetr, 1994 Ovitamon Ng & Takeda, 1992 Parapotamonoides Dai, 1990 Parapotamon De Man, 1907 Pararanguna Dai & G. X. Chen, 1985 Parvuspotamon Dai & Bo, 1994 Phaibulamon Ng, 1992 Pilosamon Ng, 1996 Planumon Yeo & Ng, 2007 Potamiscus Alcock, 1909 Pudaengon Ng & Naiyanetr, 1995 Pupamon Yeo & Ng, 2007 Qianpotamon Dai, 1995 Quadramon Yeo & Ng, 2007 Rathbunamon Ng, 1996 Ryukyum Ng & Shokita, 1995 Setosamon Yeo & Ng, 2007 Shanphusa Yeo & Ng, 2007 Sinolapotamon Tai & Sung, 1975 Sinopotamon Bott, 1967 Stelomon Yeo & Naiyanetr, 2000 Stoliczia Bott, 1966 Takpotamon Brandis, 2002 Tenuilapotamon Dai et al., 1984 Tenuipotamon Dai, 1990 Teretamon Yeo & Ng, 2007 Terrapotamon Ng, 1986 Thaiphusa Ng & Naiyanetr, 1993 Thaipotamon Ng & Naiyanetr, 1993 Tiwaripotamon Bott, 1970 Tomaculamon Yeo & Ng, 1997 Trichopotamon Dai & G. X. Chen, 1985 Vadosapotamon Dai & Türkay, 1997 Vietopotamon Dang & Ho, 2002 Villopotamon Dang & Ho, 2003 Yarepotamon Dai & Türkay, 1997
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