The town of Moroni, which serves as the capital of the Comoros Islands, is located in, for 10 points, which body of water that separates Madagascar from a namesake African nation to the east?
This body of water is home to Juan de Nova Island, in whose surrounding reefs lies the wreck of the SS Tottenham, and to the Glorioso Islands, which contains Ile du Lys.  Its horseshoe-shaped Banc du Geyser is found near the sunken Banc du Levee.  Dzaoudzi and Mamoudzou have served as capital of the island of Mayotte, which is located in this body of water; Mayotte is sometimes grouped with Moheli and Anjouan as part of an island nation that lies within it.  It reaches its narrowest point of about (*) 460 kilometers between Angoche and Tambohorano, and the Agulhas current is fed by waters flowing south through it.  The town of Moroni, which serves as the capital of the Comoros Islands, is located in, for 10 points, which body of water that separates Madagascar from a namesake African nation to the east?
This body of water is home to Juan de Nova Island, in whose surrounding reefs lies the wreck of the SS Tottenham, and to the Glorioso Islands, which contains Ile du Lys.  
{Mozambique Channel}