No Rhino was never listed but it was bought out by Aloma.
What Does Over-The-Counter Bulletin Board - OTCBB Mean?
A regulated electronic trading service offered by the National Association of Securities Dealers (NASD) that shows real-time quotes, last-sale prices and volume information for over-the-counter (OTC) equity securities. Companies listed on this exchange are required to file current financial statements with the SEC or a banking or insurance regulator. There are no listing requirements, such as those found on the Nasdaq and New York Stock Exchange, for a company to start trading on the OTCBB.
Stocks that trade on the OTCBB, will have the suffix ".OB".