Sao n. (Zool.) Any marine annelid of the genus Hyalinaecia, especially Hyalinaecia tubicola of Europe, which inhabits a transparent movable tube resembling a quill in color and texture.
... Poland Portugal Puerto Rico Qatar Reunion Romania Russia Rwanda Saint Helena Saint Kitts and Nevis Saint Lucia Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia and Montenegro Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands Spain Spratly Islands Sri Lanka Sudan ... — The 1998 CIA World Factbook • United States. Central Intelligence Agency.
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