<Dd> On the North . The Southern limits of the Gulfs of Suez (A line running from Ràs Muhammed (27 ° 43'N) to the South point of Shadwan Island (34 ° 02'E) and thence Westward on a parallel (27 ° 27'N) to the coast of Africa) and Aqaba (A line running from Ràs al Fasma Southwesterly to Requin Island (27 ° 57 ′ N 34 ° 36 ′ E ﻿ / ﻿ 27.950 ° N 34.600 ° E ﻿ / 27.950; 34.600) through Tiran Island to the Southwest point thereof and thence Westward on a parallel (27 ° 54'N) to the coast of the Sinaï Peninsula). </Dd> <Dd> On the South . A line joining Husn Murad (12 ° 40 ′ N 43 ° 30 ′ E ﻿ / ﻿ 12.667 ° N 43.500 ° E ﻿ / 12.667; 43.500) and Ras Siyyan (12 ° 29 ′ N 43 ° 20 ′ E ﻿ / ﻿ 12.483 ° N 43.333 ° E ﻿ / 12.483; 43.333). </Dd> <P> Red Sea is a direct translation of the Greek Erythra Thalassa (Ερυθρὰ Θάλασσα), Latin Mare Rubrum (alternatively Sinus Arabicus, literally "Arabian Gulf"), Arabic: البحر الأحمر ‎, translit . Al - Baḥr Al - Aḥmar (alternatively بحر القلزم Baḥr Al - Qulzum, literally "the Sea of Clysma"), Somali Badda Cas and Tigrinya Qeyyiḥ bāḥrī (ቀይሕ ባሕሪ). The name of the sea may signify the seasonal blooms of the red - coloured Trichodesmium erythraeum near the water's surface . A theory favored by some modern scholars is that the name red is referring to the direction south, just as the Black Sea's name may refer to north . The basis of this theory is that some Asiatic languages used color words to refer to the cardinal directions . Herodotus on one occasion uses Red Sea and Southern Sea interchangeably . </P> <P> Historically, it was also known to western geographers as Mare Mecca (Sea of Mecca), and Sinus Arabicus (Gulf of Arabia). Some ancient geographers called the Red Sea the Arabian Gulf or Gulf of Arabia . </P>

Why is it called the red sea in egypt
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