Carl-Erik Cantell has written:

'Studies on the morphology, taxonomy, and larval development of heteronemertines (Nemertina)' -- subject(s): Nemertea

'Some developmental stages of the peculiar Nemertean larva pilidium recurvatum Fewkes from the Gullmarfjord (Sweden)' -- subject(s): Larvae, Nemertea, Platyhelminthes

1. Annelida

2. Anthropoda

3. Chordata [which is the phylum humans belong in.]

4. Cnidaria

5. Echinodermata

6. Mollusca

7. Nematoda

8. Platyhelminthes

9. Porifera