478 
PROTOZOA. 
PllOTOZOA 
BY 
Ramsay H. Traquatr, M.D., and W. F. Kirby, M.E.S. &c. 
J. D. Macdonald, Ann. N. H. (4) viii. pp. 221-223, proposes the follow- 
ing classification of the Inveriehratay founded upon the progressive-develop- 
ment theory : — 
Protozoa. 
A 
( \ 
Astomata. 
Hhizopoda. 
Ocelenterata. 
Molluscoida. 
Mollusca proper. 
Greyarinidce, 
Oeatoidea. 
Nematoidea*. 
Trematoda. 
Stomatoda. 
Infusoria. 
Aprocta f. 
Proctucha f. 
Echinodermata. 
— I — ^ 
Noctilucidce. 
Rotifora. 
Annelida. 
Articulata. 
ScHMABDA (Zoologie, i. pp. 156-199) classifies the Sarcodea (Protozoa) 
as follows 
RHIZOPODA. 
Athalamia or Rhizopoda nuda : Amoehida, Actinophryida, Acinetida, 
inc. sed. Noctilucida. 
Rhizopoda impebporata ; Gromida, Comuspirida, Arcellida, Miliolida. 
Fobaminipeba ; Monothalamia — Orbulinida ; Polythalamia — Rotalida, 
Uvellinida, Textularida, Cassidulinida, Cristellarida, Nonionida, Peneroplida, 
Polystomellida, Borelida, Poritida, Orthocerinida, Conulinida, Acervulinida. 
POLYOYSTINA. 
Radiolabia monozoa or Monocyttaria : Thalassicollida, Thalasso- 
sphaerida, Aulacanthida, Acanthodesmida, Cyrtida, Ethmosphserida, Aulo- 
sphasrida, Cladococcida, Acanthometrida, Diploconida, Ommatida, Spongu- 
rida, Discida, Lithelida. 
Radiolabia polyzoa or Polycyttabia : Sphserozoida, Collosphferida. 
INFUSORIA. 
Astomata : Cymozoida, Volvocida, Astasiida, Dinobryida, Phacida, Mo- 
nadina, Cryptomonadina. 
Stomatophora ; Peridiniida, Vorticellida, Trichodinida, Ophrydina, 
Including Acanthocephala, 
t Turbellaria. 
