Material. Bolivar, near Cartagena, Gibbon leg. (USNM, syntypes of Bulimus decoratus), Caldas/Tolima, near Santa Ana (ANSP, holotype of D. d. goniobasis); Cundinamarca, Bogota (ANSP 107812); Narino, Rejoya, Buesaco (UVZ n.c); Putumayo, Santa Lucia, Santiago, 2600 m, M.C. Cabrera leg., 2512002 (UVZ n.c).
Remarks. An older label accompanying the type lot of Drymaeus decoratus goniobasis reads: "... from mountains betweenf?] Salamina and S. Ana". This leads us to assume that it refers to a place called Santa Ana 30 km (as the crow flies) WNW Manizales [05° 08' N 075° 47' W]; LINARES & VERA (2012) suggest this locality as NE Mariquita in Tolima. We tentatively refer the specimens from UVZ to this taxon; they differ somewhat in colour, but otherwise confirm to the description of D. decoratus. The type locality of this species may be misleading, as it is unknown to which areas Gibbon travelled. It is possible that the original type locality may not be as close to sea level, or as far north as may be inferred. Currently known with certainty from only four specimens, including the type material of both names. The record from Ecuador (BREURE & BORRERO 2008: 20) is in error.