gastropods remain to be discovered in Afghanistan
... that a large number of gastropods remain to be discovered in Afghanistan?
... that a large number of <b id="mwFyc"><a href="./List_of_non-marine_molluscs_of_Afghanistan" id="mwFyg" rel="mw:WikiLink" title="List of non-marine molluscs of Afghanistan">gastropods remain to be discovered in Afghanistan</a></b>?