1902] MICROSCOPICAL JOURNAL. 91 
ops 
n DB 
re 
4 
Nn“ SM “MS OM OM 
Annulose; toes 2; ciliated region ventral............ 
Not annulose ; often soft and versatile, (0) 
With sense-organs in the lumbar region ; brain 3-lobed 
Me ene) 88 oo. Satis 2 Copeus, 33 
Without sense-organs in the lumbar region, (p) 
Foot without telescopic joints, (q) 
Foot with telescopic joints ; eyes 3.000 ceceeeeeeeee EKosphora, 36 
Brain conspicuous, often with chalk-masses ; eyes and 
tail present ; movements usually active... Notommata, 32 
Taphrocampa, 30 
Brain saccate; eyes 3, cervical, in transverse row ; tail 
bulbous, overhanging.......; Triophthalmus, 69 
Brain conspicuous, 3-lobed ; tail ; a minute tubercle; 
Ween CORIAClE BIND 1C es. Copeus, 33 
Brain conspicuous ; eyes and tail none: mallei 1-toothed 
Pleurotrocha, 31 
Brain not specially conspicuous, clear, (r) 
Body with tendency to lumbar enlargement, (s) 
Body without lumbar enlargement, worm-like; ciliated 
face sub-prone ; auricles and tail none Proales, 34 
Proboscis fleshy ; eyes 2, cervical... Distemma, 38 
Proboscis often a hook; eyes 2, minute, frontal...........Diglena, 37 
Proboscis none; eye 1, frontal, or none ; toes usually long 
TN RE ER TERRE ne Nee eS a Furcularia, 35 
Foot none; lorica otic ike, smooth Pi aCe ae Pompholyx, 59 
ne ** Jorica-plates connected by membrane........ Anapus, 77 
«6 * ~~‘ Jorica beset with pinnate styles... Ptoeressa, 23 
a ‘¢ lorica with spines or elastic setz, (u) 
Foot not transversely wrinkled, not wholly retractile, (v) 
Foot often trans, wrinkled, and often wholly retractile, (ii) 
Front edge always, the anal sometimes, spinous....... Anurzea, 62 
Front edge 6-spined; often produced behind... Notholea, 63 
Lorica without spines, but with long, rigid styles Eretmia, 64 
Lorica without an arched frontal plate, (w) 
Lorica with an arched frontal plate, (z) 
Lorica entire, (x) 
Lorica split down the back, each end open, (gg) 
Lorica split down the ventrum ; head with horny plates 
TS STI IS aaa Dispinthera, 74 
Lorica split down the ventrum; gaping behind. Marine 
ETE AMES TRE, BESTE AE AO REA Sts py ED a ne Mytilia, 56 
Lorica formed of 2 plates, dorsal and ventral, (dd) ° 
Lorica not formed of 2 plates, (y) 
Lorica cylindrical, open at each end, (bb) 
Lorica pyriform or vasiform, (hh) 
Lorica hemispheric or 3-sided, short 
Frontal plate a hook, (aa) 
oy atl Cochleare, 57 
