------ Jacobæus, [400].

------ quinquecostatus, [400].

------ opercularis, [385].

Pectunculus, [405].

Pedicellariæ, [313].

Pentacrinus caput-medusæ, [282].

----------- Hiemeri, [293].

Pentamerus, [391].

Penthetria, [558].

Pentremites pyriformis, [286], [297].