Silura

Dictionary of Greek and Roman Geography

SILURA an island of Britain, separated only by a narrow strait from the coast of the Dumnonii, who inhabited the most SW. point of Britannia. (Solin. 100.22.) It is probably the same island which Sulpicius Severus (2.51) calls Sylina, and seems to mean the Scilly Islands.
[T.H.D]