224 
THE TANGANYIKA PROBLEM. 
skirt. The snout is short, wrinkled, and pigmented, and 
the eyes, which possess lenses, are situated on a long 
tapering tentacle on each side of the head. The buccal 
mass in Typ/iobia is not large, and the rasping teeth which 
are arranged in innumerable transverse rows on the tongue 
present the characteristic elements represented in Fig. 4. 
Fig. 5. — Semi diagram of the anatomy of Typhobia horei. 
The Mantle laid open and the digestive tube shaded. 
The ova are seen in the brood pouch, Bp. 
where the lateral teeth on the left side, and the median 
tooth are shown. Following the alimentary canal, the 
buccal mass is succeeded by a long narrow oesophagus, 
which receives the ducts from two very simple, pouch-like 
salivary glands, and passes quite straight back into the 
stomach. The stomach in Typhobia is very characteristic 
