Entity:

Attributes

Unavailable name (nom. inval.) [ICZN, 1999: Arts. 1.3, 10-20]				Ref: P. Bouchet & J.-P. Rocroi, 2005. Malacologia 47 (1-2): 256 ("n.a.").
Nomen nudum (nom. nud.) [ICZN, 1999: Arts. 12 [before 1931], 13 [after 1930], G]				Ref: P. Bouchet & J.-P. Rocroi, 2005. Malacologia 47 (1-2): 83 ("Name only, no diagnosis.").

Types

Type

Ref: P. Bouchet & J.-P. Rocroi, 2005: 83.

Accepted name

Ptychatractidae (Family) Stimpson, 1865

Ref: P. Bouchet & J.-P. Rocroi, 2005: 256.