(■•circ.oc«.rtng. 



dxlisk. 



ant.cilj:-- 



d.m.. 



-or.cil. 



or. disk, 

 oxlor.ni. 

 -t^adorlip. 



jondorfur. 



•-■ojadop.lip. 

 oes. 



ocsxctr. str. 

 ocs.relr. str. 

 v.sk.a. 

 -sk.lam. 



c.-v.r. 

 posLcv.--' 



•an. 



FIGURE 1. DIPI.ODIXIU^I ( AFTER SHARP ). 



ador.m., adoral membranelles. an., anus. ant. oil. r., anterior ciliary 

 roots, ant.c.v., anterior contractile vacuole, bd.l., boundary layer 

 (ectoplasmic). cir.oes.r., circumesophageal ring. caec, caecum, 

 cut., cuticle, c.v.r., region about contractile vacuole. D., dorsal side 

 of body, d.disk, dorsal disk. d. furrow, dorsal furrow, d.m.str., 

 dorsal motor strand, d.m., dorsal membranelles. ect., ectoplasm, 

 ent., entoplasm. fd.v., food vacuoles, i.ador.lip, inner adoral lij). 

 i.d.lip, inner dorsal lij). L., left side of body, l.sk.a., left skeletal 

 area, mac, macronucleus. mic, micronucleus. m.m., motor mass 

 (motorium). o.ador.fur., outer adoral furrow, o.ador.lip, outer 

 adoral lip. o.d.fur., outer dorsal furrow, o.d.lip, outer dorsal lip. 

 oes., oesophagus or cytopharynx. oes.f., oesophageal filjcrs. oes.- 

 retr.str., oesophageal retractor strands, op., o])erculinH. op.f., op- 

 ercular fibers, or., oral opening, mouth, or cytostome. or.cil., oral 

 cilia, or.disk., oral disk, post.cil.r., posterior ciliary roots. ])ost.c.v., 

 posterior contractile vacuole. R., right side of the body, rect., rec- 

 tum, rect.f., rectal fibers, r.sk.a., right skeletal area, sk.lam., skel- 

 etal laminae, susp.f., susj)ens()ry fibers. \\ ventral side of body, 

 v.sk.a., ventral skeletal area, n.m., nuclear membrane. 



231 



