of Echinanthidae, [549];

of Echinocardium cordatum, [551]

Petalocrinus, [595]

Petasidae, [294]

Petasus, [294]

Peters, [414] n.

Petrostroma, [193];

P. schulzei, [193]

Pfeiffer, on Sporozoa, [94]

Phacella, [314]