Gigantorhynchidae, [183]
Gigantorhynchus gigas, [174], [177], [184];
G. echinodiscus, G. spira, G. taenioides, [184]
Gills, of Polychaeta, [252], [265], [268] f.;
of Arenicola, [333];
of Chlorhaemidae, [334];
of Cirratulus, [326];
of Eunicidae, [318];
of Nereis, [246];