572 
PfiOTOZOA. 
Genera and Species; Classification, 
Podophrya gemmipara and P. poculum, spp. nn. (Heligoland, on Bryo- 
zoa, Tubularice, and other Uydrozod)^ Allman (1). 
Cyclochcetay g.*n. [Family Urceolarina]. “Animal with circle of 16 
set83 on the oral surface of the disc ; spiral of buccal cilia absent ; mouth 
placed in the angle formed by the junction of the body and disc ; body 
soft, changing in shape ; ring with 37 hooks and radii, being of one 
piece throughout.” C. spongillce, sp. n., Jackson (6) (on Spongilla fluvia- 
iilis, Oxford). 
Fromentel (4) classifies the “ Microzoa ” in the following manner : — 
Microzoa vorticosa (Infusoires a tourbillon). 
A disque vibratile retractile Vorticellidce. 
Vorticellides pedoncul^es on fix^es Vorticellina. 
V. envagindes Vaginicolina. 
V. libres Stentorina. 
Sans disque vibratile retractile Paramcecidce. 
Point de cuirasse* : 
Une couronne de cirrhes buccaux ; corps glabre. Halterina. 
Pas de couronne de cirrhes : 
Infusoires nageurs et marcheurs Keronina. 
Infusoires nageurs seulement ; 
Un appareil dentaire d^gluteur Naasulina. 
Point de dents; 
Un pied special Ervilina. 
Point de pied ; 
Animalcule tres contractile Lacrymarina . 
Animalcule non contractile Paramcecina. 
Une cuirasse persistante Colepina. 
Microzoa nutantia (Infusoires oscillants). 
M. poss^dants un ou plusieurs flagellums Monadidce. 
Carapace solide Peridinina. 
Nus, a tegument contractile Euglenina. 
Nus, Isolds, a tdgument non contractile Monadina. 
Nus, agglomerds, non contractiles Volvocina. 
M. depourvus de flagellum Vibrionidce (Vibrionina). 
Groupe de transition Amccboea. 
It will hardly be necessary to enumerate the new species ; the follow- 
ing f new genera are introduced : — 
Trichodon [name pre-occupied]. Characters of Chilodon, but having 
beside the apparatus of deglutition, a long bristle inserted at its margin. 
T. ciliatus and acuminatus [fam. Naasulina']. 
Tricholeptus. General form of Condylostoma^ differing in its less en- 
* Notwithstanding this scheme, there are enumerated Keronina with “cui- 
rasse ■’ (QampylopuSy &c.). 
t Other new genera are, Trichonema and Stomonema (fam. Euglenina)^ Pleuro- 
nionas, cyathomonas, Diplomita (fam. Monadina), Stylohryon, Pycnohryon, Allo- 
dorinay and Diplodorina (fam. Volvocina). 
