INFUSORIA. 55 
Amphileptus EHRENB. (Amphileptus and Loxophyllum Dusarp.) 
Sp. Amphileptus meleagris, K olpoda meleagris MvELL., Infus, Tab. x1v. figs. 
1-6, XV. figs. 1-5, EHRENB, Tab. Xxxvutt. fir vAl 
Family XI. Oxytrichina. Body mostly plane or depressed, 
armed with vibratile cilia and sete, and hooks or styles not vibra- 
tile, not loricated. 
This family agrees with the genus Kerona of Muetter. Besides 
the usual fine cilia, the animals have other organs for creeping and 
for the support of the body in climbing, and which are distinguished 
by Enrenzere as bristles (sete), styles (styli) and hooks (wncini) ; 
Infusionsth. s. 338, 
Genera: Kerona Muetz. in part, Dusarp. (Stylonychia and Kerona 
EuRENB., Ceratidium ejusd.)—Ozytricha Bory (Oxytricha and 
Urostyla Exrens.) ; Halteria Dusarp. 
Sp. Kerona mytilus (and Ker. haustellum) Muxtt., Infus. Tab. xxxtv. figs. 
1-4, Enrens. Infusionsth. Tab. xut. fig. 1x., Dusarp. Infus. Tab. xu. 
figs. 2, 3; very common in fresh water, size ps to Z line. If this form be 
compared with monads, Vibrios and the animals of Volvox globator, it will 
be seen that in respect of size there is as great a difference amongst Infu- 
sories as amongst Mammalia. 
Family XII. Euplota (Euplota and Aspidiscina EHRENB.) Body 
oval, depressed, loricated. Vibratile cilia around the mouth; besides 
cilia, often styles and hooks for motion. 
Euplotes ExRENB. (Phlasconia Bory, Dusarv.) Lorica oval or 
suborbicular, longitudinally ribbed or striated; body with styles 
and hooks. 
Sp. Luplotes patella, Kerona patella Mvrtt., Infus. Tab. xxxutt. figs. 14-18, 
Enrens. Infusionsth. Tab. xuit. fig. Ix., Dusarp. Infus. Tab. vu. figs. 
1-4. 
Chlamidodon ExRENB. Styles and hooks none. Slender rigid 
rods arranged in a cylindrical fasciculus around the mouth (teeth). 
Sp. Chlamidodon mnemosyne EHRENB. » Infusionsth. Tab. Xu. fig. vi j in 
the Baltic. 
Diophrys Dusarv. 
Himantophorus EHRENB. 
Aspidisca EHRENB. Lorica produced beyond the body forwards, 
hyaline ; longitudinal flexible sete on the ventral side, for stepping 
and creeping. 
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