After "The Tree of Life" and Felley, Vecchione, Roper, Sweeney & Christensen, 2001-
<==o Mastigoteuthidae Verrill, 1881
|--o Idioteuthis Sasaki, 1916 [Mastigoteuthis Verrill, 1881, in partim]
| |-- I. latipinna (Sasaki, 1916)
| |-- I. cordiformis Chun, 1908
| |-- I. danae (Joubin, 1933)
| |-- I. famelica (Berry, 1909)
| |-- I. hjorti (Chun, 1913)
| |-- I. okutanii Salcedo-Vargas, 1997
| `-- I. tyroi Salcedo-Vargas, 1997
`--o Mastigoteuthis Verrill, 1881
|-- M. agassizii Verrill, 1881
|-- M. atlantica Joubin, 1933
|-- M. dentata Hoyle, 1904
|-- M. ?flammea Chun, 1908
|-- M. glaukopis Chun, 1908
|-- M. grimaldii (Joubin, 1895)
|-- M. inermis Rancurel, 1972)
|-- M. iselini MacDonald & Clench, 1934
|-- M. magna Joubin, 1913
|-- M. psychrophila Nesis, 1977
|-- M. pyrodes Young, 1972
|-- M. ?schmidti Degner, 1925
`-- M. ?talismani (Fischer & Joubin, 1907)
Reference(s):
Felley, J., Vecchione, M., Roper, C. F. E., Sweeney, M. & Christensen, T., 2001-2003: Current Classification of Recent Cephalopoda.
–iNet: National Museum of Natural History: Departent of Systematic Biology: Invertebrate Zoology: http://www.mnh.si.edu/cephs/
Young, R. E. & Salcedo-Vargas, M. A., 1996-7 September 1999: Mastigoteuthidae Verrill, 1881 - Mastigoteuthis Verrill, 1881 - Whip-lash squid.
–iNet: The Tree of Life Project: http://tolweb.org/