Animalia ![](c-black.gif)
I. Protozoa
i. Monera
Protamoebidae
Protomonadidae
Myxastridae
Foraminifera
ii. Endoplastica
Amoebidae
Infisoria flagellata
Infusoria ciliata
Gregarinidae
Acinetidae
Radiolaria
II. Metazoa Haeckel ![](c-black.gif)
A. Gastreae
[We may, with Haeckel, term those animals which
pass through the Gastrula stage, the Gastraea]
i. Polystomata
Porifera = Spongida
ii. Monostomata
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1. Archaeostomata
a.
Scolecimorpha
Rotifera
Turbellaria
Trematoda
Nematoidea
Hirudinea
Oligochaeta
b.
Coelenterata
Hydrozoa
Actinozoa
(Ctenophora)
2. Deuterostomata ![](c-red.gif)
a. Schizocoela
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Annelida polychaeta
Gephyrea (?)
Arthropoda ![](c-black.gif)
b.
Enterocoela
Brachiopoda
Enteropneusta
Polyzoa (?)
Chaetognatha
Mollusca
Echinodermata
c.
Epicoela
Tunicata = Ascidioida
Vertebrata
B. Agastreae
(provisionally)
[probable as it may be that these are
Gastraea with aborted digestive cavities ...]
Cestoidea [...
so closely allied with the Trematoda ...]
Acanthocephala
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