Psilaxis oxytropis is a species in the family Architectonicidae, commonly called sundial.
Shells of this species are disc-like and smooth with the exception of the marginal cords. They are cream with a broad spiral subsutural brown band and radiating brown lines. They may be distinguished from the shells of Psilaxis radiata by their larger protoconchs with brown staining. Live animals are translucent-cream with white flecks.
t's typically found in sand at 50-66 m.
Architectonica radiata Röding, 1798
Philippia layardi A. Adams, 1855
Philippia radiata (Röding, 1798)
Philippia stipator Iredale, 1931
Solarium (Philippia) cingulum (Kiener, 1839)
Solarium (Philippia) cingulum var. subconcolor Martens, 1880
Solarium (Philippia) hybridum var. australis Hanley, 1863
Solarium (Philippia) hybridum var. undatum Hanley, 1863
Solarium cingulum Kiener, 1839
Solarium kowiensis W. H. Turton, 1932