Home > Invertebrates > Shells > Sundials > Psilaxis radiatus

Updated 3/1/2026

Family Architectonicidae

INDO-WEST PACIFIC / HAWAII / TROPICAL EASTERN PACIFIC

Psilaxis radiatus

Kewalo, Oahu, 60 feet

 


Keauhou, Hawaii, 3 feet


  
   

RADIAL SUNDIAL

Uncommon in sand & rubble next to Lobe Coral upon which it feeds at night.  Color variable, protoconch white, Psilaxis oxytropis has a brown protoconch with a white spot.  Attains diameter of 1 inch, 26 mm.  East Africa to Japan, Hawaii, French Polynesia, Panama, and Ecuador.  Formerly known as Philippia radiata.