tn. Nerve to anterior tentacle. vo. Larger medial visceral nerve. 
V. Visceral ganglion. vr. Right visceral nerve. 
va. Vagina. vt. Smaller medial visceral nerve. 
va' . Vagina distended. vu. Vacuole. 
ve. Ventricle. x. Cavity behind anterior fold of 
vn. Medial nerve of visceral gang- body, 
lion. 
