248 
THE TANGANYIKA PROBLEM. 
aperture to a small opening below the left eye. The 
opening communicates with a canal, and the canal passes 
Fig. 30. — The lingual dentition of 
Tanganyicia nifofilosa. 
to the right under the buccal mass in the upper part of the 
foot quite out to the left of the body, where it expands 
Fig. 31. — Nervous system of Tanganyicia rufofilosa. A., From 
above. B., From the left side. c. g., Cerebral ganglia in 
both figures. 
into a large sub-circular sac, which in the specimens I 
examined was filled with young in various stages, and 
