Does anyone know the HTML entity used by Flickr as arrows in the action menu?

If you op开发者_JAVA百科en an image in FLickr (http://www.flickr.com/photos/visualpanic/233508614/) and click on the Actions menu button, you could see a pop-up menu with arrow icon on top of it. It is not a image but it's combination of two characters (◢◣).

Does anyone know what's the entity value for those characters? Googling was not much helpful.

◢ ◣ (written as ◢ and ◣)

Note: I pretty much copy pasted the UTF-8 codes from your post :)