1 Prot. 
PROTOZOA. 
BY 
W. Sayille-Kent, F.L.S., F.Z.S. 
THE GENERAL SUBJECT. 
Chief Works. 
BOtsciili, O. Protozoa in H. S. Bronn’s Klassen und Ordnungen des 
Thier-reichs. 
Parts 14-18, pp. 497-616, with pis. xxi.-xxxviii., 1882, continue the 
description of the Gregarina , partly illustrate this group, and complete 
that of the Radiolaria. The classificatory scheme of the Gregarina 
herein adopted is as follows : — 
Sub-class Gregarina. 
Order I. Monocystidea. 
Tribe 1. Monosporea. Genera, Orthospora , Eimeria. 
Tribe 2. Oligosporea. Genera, Cyclosporea , Isospora, Cocculiura. 
Tribe 3. Polysporea. Genera, Klossia } Benedenia, Adelea , Mono- 
cystis , Gamocystis , Conorhynchus , Gonospora , Urospora. 
Order II. Pulycystidea. 
Genera, Dufouria, Bothriopsis , Porospora, StenocepJialus , Ilyalo- 
spora, Easpora , Clepsidrina , Pileocephalus , Echinocephalus , 
Stylorhynchua , Geneiorhynchus, Actinocephalus, Pyxinia. 
Sayille-Kent, W. Manual of the Infusoria , including a description 
of all known Flagellate, Ciliate, and Tentaculiferous Protozoa. [See 
Zool. Rec. xvii. & xviii.] London: 1882, imp. 8vo, pt. vi. pp. 721-913, 
pis. xli.-li. 
This part completes the treatise ; it concludes the description of the 
Peritrichous Order of the Ciliata , and comprises that of the Hypotricha 
and Tentaculifera. 
PERI T RICH A . 
The remaining new genera and species of Peritricha are described. 
Cothurnia irregularis , cohni, gracilis. 
Pyxicola , p. 725. Differs from Cothurnia in development of a dis- 
coidal corneous operculum beneath the border of the peristome, which 
