Haematocleptes, parasitic, [297]

Haementeria, [407]

Haemerythrin, [416];

in Magelona, [252]

Haemoglobin, in Nemertinea, [107], [108];

in Chaetopoda, [252], [253], [291], [356];

in Gephyrea, [437];

in Phoronis, [456]

Haemopis, [393], [407]

Halicryptus, [432], [433];