1902) MICROSCOPICAL JOURNAL. 101 
Auricles present, (f) 
Auricles not seen ; foot straight, protrusile as long 
as the trunk; eye frontal, small. ww. ou. .... Theodora. Sup | 
Auricles cylindric, oblique; body tapering to long 
ROMib See OE) as potamis. Sup 
Auricles rounded, small; body 
broadly truncate; toes long; 
trophi forcipate. ww... lacinulata, (Diaschiza. Weber, 545) 
Auricles, rounded, small; toes long. Like aurita...............ansata 
Auricles rounded, the setz very long; body 
cuneate; toes curved, 4% body-length.....cuneata. J., 1891, 305 
Head broad, auricles obscure; foot long; toes short, acute. 
GEN Bak PER OD ED Nato AIC) iad PO MDaemon gS TST 
Head narrow, auricles small; foot invisible; toes min- 
Tt eee BR PMOM oe brachyota 
33. Coprvs. II., 28. Sup. 19. 
Lumbar organs one or more sete on each side, (b) 
Lumbar organs tubules setigerous at the summit, (c) 
Lumbar organs a single, postero-dorsal tentacle; anten- 
TG DMP ICIOS TIOTNS. oo oii idee dec ccscace caudatus 
Lumbar organs none; auricles small; brain 3-lobed........ Cerberus 
Auricles long, tubuliform; lip long, ventral, ciliated ; 
foot 2-jointed, a tubercle between the long toes........... labiatus 
Auricles long, thick; no long lip; no digital tu- 
bercle; foot 3-jointed; tail stiff, pointed... Ehrenbergii. Sup 
Auricles, large, oval, thin, disc-like; toes unlike; 
Ph RMN oink oi age Americanus* 
Brain 3-lobed; tail bag-like, sub-globose; antenna 1, 
SESSA ME UT AONE OTT STN Bs pachyurus 
Brain 3-lobed ; 2 occipital antenmee ooo oo. oe eee ceeee eoeeees spicatus 
Brain 5-lobed ; 1 antenna... ow... quinquelobatus. J., 1896, 269 
34. PROALES. II., 36. Sup. 23. 
Not parasitic; often among Alge, (a) 
Parasitic in Volvox: foot and toes none... cette parasita 
Parasiticin Vaucheria-galls ; toes small, straight..Wernickii. Sup 
Foot present, more or less stout, (b) 
Foot undeveloped, toes minute ; body slender, vermif’m..decipiens 
Body cylindric or fusiform, (c) 
Body bottle-shaped, belly flat; foot short; toes 
blade-shaped, straight, acute... ee prehensor. Sup 
Toes slender, pointed, foot stout, (d) 
Toes minute, (e) 
Toes and foot both long, sigmoid ; body curved.................... tigridia 
Toes rod-shaped, base thick, tapering, obtuse,long..coryneger. Sup 
* Pell. The Microscope, 1890, 144. 
