183 
are visible, as may be mentioned, Minot’s granular giands (“Kor- 
nerkolben“). The ventral wall lacks them more or less completely 
(in fig. 31 none are present). 
a, 
bm, 
bmt, 
cy, 
de, 
dgi. 
e, 
ep, 
ept, 
ex, 
f, 
i, 
Lv, 
m, 
mi, 
mu, 
n, 
oc, 
P, 
pc, 
ph, 
php, 
prd, 
pre, 
prm, ' 
prv, 
prx, 
sd, 
spa, 
t, 
tm, 
u, 
V, 
Explanation of letters. 
antrum masculinum. 
basemen4 membrane of body. 
„ tentacle. 
cyanophilous giands. 
ductus ejaculatorius. 
ductus vagino-intestinalis. 
„ „ „ enters the main gut. 
epidermis. 
tentacular epithelium. 
excretorial canal. 
artificial fissure between basement membrane and muscularis. 
intestinal branch. 
Lang’s vesicle. 
mouth. 
main gut. 
median uterine duet. 
nerve. 
ocellus. 
penis. 
penis canal. 
pharynx. 
pharyngeal pocket. 
efferent duet of prostate vesicle. 
epithelium „ „ „ 
muscularis „ » 
prostatic vesicle (vesicula granulorum). 
ductuli of extra-capsular prostate giands. 
Shell duet (ootype). 
sperma ejected into antrum masculinum. 
tentacle. 
transverse layer of muscularis. 
uterus. 
vagina. 
