Quasillina, [224]
Quatrefages, de, [376]
Quelch, [280]
Quinqueloculina, [59], [65] f.
Quinqueloculine type, [67]
Radial blood-strand (or vessel), of Asterias rubens, [450];
of Ophiothrix fragilis, [488]
Radial canal, of water-vascular system, [428];
of Asterias rubens, [441];