Plesiozonus diomedeae Mortensen 1948 

Family: Paleopneustidae

Order: Spatangoida

Locality: Philippines, Cebu, Punta Engano, 350 m

Dimensions: 88 x 51 x 57 mm


I bought this specimen as Pericosmus keiensis from a Philippinean seller. I did not find any significant difference compared with my Plesiozonus diomedeae. Now I learned, that the genus Pericosmus has a marginal and a peripetalous fasciole. As in my specimen no fasciole is visible, it is surely not a Pericosmus but rather another Plesiozonus diomedeae..