According to the IUPAC nomenclature for elements with atomic numbers > 100:

1. Unnilunium corresponds to atomic number 101 ($1$ for un, $0$ for nil, $1$ for un). The official name is Mendelevium (Md). This match is correct.
2. Unniltrium corresponds to atomic number 103 ($1$ for un, $0$ for nil, $3$ for tri). The official name is Lawrencium (Lr). This match is correct.
3. Unnilhexium corresponds to atomic number 106 ($1$ for un, $0$ for nil, $6$ for hex). The official name is Seaborgium (Sg). This match is correct.
4. Unununnium corresponds to atomic number 111 ($1$ for un, $1$ for un, $1$ for un). The official name is Roentgenium (Rg). Darmstadtium (Ds) corresponds to atomic number 110 (Ununnilium). Therefore, this match is incorrect.