Streptaxis iheringi H.A. Pilsbry, 1930
Gulella inconspicua K.H.J. Thiele
Gulella infans (A. Craven, 1880)
Gulella infrendens (E.C. Von Martens, 1866)
Edentulina insignis (L. Pfeiffer, 1857)
Rectartemon intermedius (J.A. Albers, 1857)
Gonospira intersecta (G.P. Deshayes, 1863)
Gulella intrusa B. Verdcourt, 1956
Gulella io B. Verdcourt, 1974
Sinistrexcisa iradieri A.J. de Winter, R. Gomez& C.E. Prieto, 1999
Gulella isipingoensis (R. Sturany, 1898)
Gulella iwakawa H.A. Pilsbry, 1900
Gulella jaominai K.C. Emberton, 2001
Parvedentulina jeani K.C. Emberton, 2010
Rectartemon jessei (H.B. Baker, 1925)
Gulella jod (H.B. Preston, 1910)
Gulella jongkindi A.J. de Winter, 1996
Fischerpietteus josephinae K.C. Emberton& R.J. Griffiths, 2009
Ennea joubini (J. Germain, 1923)
Gulella kelibea K.C. Emberton, 2001
Gulella kelimolotra K.C. Emberton, 2002
Parvedentulina kelivitsika K.C. Emberton, 2002
Gulella kendrae K.C. Emberton& R.J. Griffiths, 2009
Parennea kerereense (W. Adam& J.L. Van Goethem, 1978)
Discartemon khaosokensis S. Panha & J.B. Burch,1998
Gonaxis kibweziensis E.A. Smith, 1894
Parennea kigeziense (H.B. Preston, 1913)
Marconia kizinga P. Tattersfield, 1999
Discartemon kotanensis T. Siriboon & S. Panha,2014
Gulella kraussi L. Pfeiffer
Gulella kuiperi A.J. de Winter, 2007
Gulella laevigata (W.L.H. Dohrn, 1865)
Streptaxis laevissimus (S. Moricand, 1836)
Gulella laevorsa (H.C. Burnup, 1925)
Bruggennea laidlawi (S.P. Dance, 1970)