Gastropoda - Neogastropoda - Mitridae

Alternative combination: Mitra swainsoni limonensis

Belongs to Mitra (Pleioptygma) according to W. P. Woodring 1964

Sister taxa: Mitra (Pleioptygma) carolinensis, Mitra (Pleioptygma) heilprini, Mitra (Pleioptygma) zaca

Type specimen: PRI 20959, a shell

Ecology: epifaunal carnivore

Average measurements (in mm): shell 77.0 x 24.5