The adult organisation of Paragordius varius. 
M.D. Cav medio-dorsal body cavity 
Îles dorso-ventral mesentery 
Mo mouth 
M.T median fibre tract of ventral 
nerve cord 
Muse musculature of body wall 
Musc.C muscle cell 
M.V. Cav medio-ventral body cavity 
M. V.T medio-ventral fibre tract 
of nerve cord 
N nucleus 
N.2 ventral nerve of head 
N.C ventral nerve cord 
N.C. Com transverse fibrous com- 
missure of nerve cord 
N.L neural lamella 
NN. Sept neural septum of cephalic 
ganglion 
O ovum 
O.Cut outer layer of cuticula of 
body wall 
Oes oesophagus 
Ov ovarium 
Ovi oviduct 
Pa parasite 
Par parenchym 
Par.N nucleus of parasitic or- 
ganism 
P.Cl black region of cuticular 
portion of cloaca 
P.Cl.N posterior cloacal nerve 
469 
Per. M perienteric membrane 
P. Int posterior intestine 
Rec receptaculum seminis 
Ret retina 
Ret. C retinal cell 
KR. Muse radial 
stomach region 
Rec.N neck of receptaculum se- 
minis 
Sen.C sensory cell of hypodermis 
S.J. O supraintestinal organ 
Sp spermatozoa 
S. Par small-celled parenchym 
Sp. Secr secretion mass around 
spermatozoa 
Stom stomach 
Tes testis 
T.L tail lobe 
Tub cuticula tubercle 
Ut uterus 
Vac vacuole 
Vas vas deferens 
Vas. Ap opening of vas deferens 
into cloaca 
Vas.S fibrous sheath of vas de- 
ferens 
V. Com ventral commissure of ce- 
phalic ganglion 
X sack-shaped organ of doubtful 
significance 
Yk yolk globule 
musculature of 
Platerst 
Mie vie 
Male, left side of the end of the head posteriorly to 
the commencement of the black cervical ring, cleared in cedar oil. 
255 : 1. 
Fig. 2. 
Female, reconstruction of the head in the median plane; 
all organs of the mid line shown except the parenchym; in dotted lines 
organs not in the mid line. 
TO: 1: 
Fig. 3. Male, similar reconstruction; the unpaired neural septa are 
in dark, the paired in light shading. 
142 :1. 
Fig. 4. Female, head from the left side shown as far back as 
the black cervical ring, cleared in cedar oil. 
onal: 
Fig. 5. Female, portion of transverse section through the ventral 
portion of the eye capsule and the retina, showing two branches of 
the dorsal nerves (of the cephalic ganglion) passing dorsally through 
the eye capsule to the retinal cells. 
848 : 1. 
