Ptolemy's ''Map of Arabia'' identifies the territories of ''Cryptus Portus'' and ''Moscha Portus''. Scholars are divided in opinion on which of the two is related to the city of ''Muscat''. Similarly, Arrianus references ''Omana'' and ''Moscha'' in ''Voyage of Nearchus''. Interpretations of Arrianus' work by William Vincent and Jean Baptiste Bourguignon d'Anville conclude that ''Omana'' was a reference to ''Oman'', while ''Moscha'' referred to ''Muscat''. Similarly, other scholars identify Pliny the Elder's reference to ''Amithoscuta'' to be ''Muscat''.