of a Holothuroid, [562];

of Spatangoidea, [553];

of Antedon rosacea, [582];

of Promachocrinus, [594]

Rain, bloody, [125]

Rainey's tubes, [108]

Ramulina, [59]

Raphidiophrys, [71], [74]

Raspailia, [225]

Rastrites, [282]