Every reference is to the page: words in italics are names of genera or species; figures in italics indicate that the reference relates to systematic position; figures in thick type refer to an illustration; f. = and in following page or pages; n. = note.

Abbott, [193] n.

Abcona, [670]

Abdominal pores, [401] f.

Abramis, [582]

Abyssascidia, [73]

Acanthaphritis, [706]

Acanthias, [455], [298];

vertebral column, [198];

uterine nutrition, [434];