158 W. MILNE ON THE 



This is a tremendously swift creeper, and slithers or glides 

 fully its own length before planting its toes. It is very steady 

 when feeding, and generally feeds in a fully extended position. 

 Every now and again, it suddenly glides along for a step or two 

 and recommences feeding, and may keep on repeating this per- 

 formance for a long time. The suddenness with which, on these 

 occasions, it unfolds its corona and is quietly feeding again is 

 almost startling. The pellets are often large and numerous, but 

 sometimes scarcely distinguishable in a glairy mass. 



The trunk is very broad, and flattened dorso-ventrally ; and 

 seen sideways has a slab-like appearance. The rump is peculiar, 

 the fleshy parts are wrinkled inwards in two waves, leaving the 

 remainder empty and glassy looking. 



The corona is to the collar as 9 : 10. It has a seta on a small 

 pimple on each wheel. When looking do^\^l on the sulcus a 

 cord-like rim can be seen on each side, running over the edge and 

 on to the w^heel, just showing and no more, an apparent clear 

 space between it and the wheel. 



The upper lip is triangular, its two sides just visibly curved, 

 and does not rise far up the sulcus. It is clear and glassy, 

 and rises gradually from the two borders and the apex, towards 

 the middle of the front of the rostral segment, somewhat like 

 part of a dome. The rostral segment during feeding is very 

 rounded dorsally, it bulges up from the sides, up to and round the 

 rostrum, which occupies the greater part and stands well up, the 

 whole having a sort of inverted-saucer appearance. 



The foot has very heavy glands which pass through the anal 

 segment. The spurs sometimes resemble a fish tail, but are 

 usually short cones, scarcely divergent, and without interspace. 



//. j)ulchra (2) is the nearest to this, but differs in the 

 upper lip and the number of teeth. 



Habitat. — Ground and rock moss ; common in Uitenhage 

 district ; also found in Grahamstown. 



Habrotrocha iners sp. no v. 

 PL 11, figs. 8-8c. 



Specific Characters. — Of moderate size with long neck ; hyaline 

 in colour. Rostrum very long and narrow ; lamella single. 

 Antenna very long, one-fourth longer than neck width. Teeth 

 three, fairly large and uniform. Lumbar region heavy. Foot 



