The website is light on details. What are those dots in front of the coast of Sierra Leone and Liberia? Why are there two dots at Senegal? What islands in the

The website is light on details. What are those dots in front of the coast of Sierra Leone and Liberia? Why are there two dots at Senegal? What islands in the Atlantic will be connected? It looks as if the Capverdes are left out but the Canaries might have a connection to this cable (but there is no white dot there). I wonder if St. Helena will get lucky. Details please!