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EXPLANATION OF LETTEKING OF FIGUEES. 
a. anus. 
b. m. bursal muscles. 
cf.p. cephalic glands. 
cf.gl. cervical glands. 
c. d. dorsal rib. 
c.d.e. exterior dorsal rib. 
c.l.p. lateral posterior rib. 
c.l.m. middle lateral rib. 
c. l.e. lateral outer rib. 
ct. cuticle. 
c.v. ventral rib. 
d. m. muscles of the male apparatus. 
es.h. oesophagean bulb. 
ex.d. excretory duct. 
ex. p. excretory pore, 
i.m. (or m.) intestinal muscles. 
i. intestine. 
l.g. Lateral neural ganglion. 
n. peri-oesophageal ring. 
ov. ovary. 
ovd. oviduct. 
r. rectum. 
rm. rectal muscles. 
sp. spicula. 
sp.et. muscle of the spicula. 
sp.rt. retracting muscle of the spicula. 
t. testicle. 
u. uterus. 
V. vulva. 
[Institute of Comparative Anatomy of the Eoya University, Geneva, 
May 20, 1914.] 
