Gulella jaominai K.C. Emberton, 2001
Gulella jod (H.B. Preston, 1910)
Gulella jongkindi A.J. de Winter, 1996
Gulella kelibea K.C. Emberton, 2001
Gulella kelimolotra K.C. Emberton, 2002
Gulella kendrae K.C. Emberton& R.J. Griffiths, 2009
Gulella kraussi L. Pfeiffer
Gulella kuiperi A.J. de Winter, 2007
Gulella laevigata (W.L.H. Dohrn, 1865)
Gulella laevorsa (H.C. Burnup, 1925)
Gulella laninifia K.C. Emberton, 2002
Gulella lawrencei A.C. van Bruggen, 1964
Gulella leucocion M. Connolly, 1929
Gulella lincolni K.C. Emberton& R.J. Griffiths, 2009
Gulella linguidens M. Connolly, 1939
Gulella lohabea K.C. Emberton, 2001
Gulella lornae B. Verdcourt, 1953
Gulella ludwigi B. Verdcourt & L.A.W.C. Venmans,
Gulella magnifica K.C. Emberton, 2001
Gulella magnorchida K.C. Emberton, 2001
Gulella mahafinaritra K.C. Emberton, 2001
Gulella mahagaga K.C. Emberton, 2001
Gulella mahia K.C. Emberton, 2001
Gulella masoalae K.C. Emberton, 2001
Gulella matavymolotra K.C. Emberton, 2002
Gulella mayottensis (M. Connolly, 1885)
Gulella menkeana (L. Pfeiffer, 1853)
Gulella miaranoniae K.C. Emberton, 2001
Gulella michellae K.C. Emberton, 2001
Gulella microstriata K.C. Emberton, 2001
Gulella mihomehia K.C. Emberton, 2001
Gulella mikenoensis (H.B. Preston, 1913)
Gulella minuseula K.C. Emberton & T.A. Pearce,2000
Gulella minuta (P.M.A. Morelet, 1889)
Gulella mitsikia K.C. Emberton, 2001