180 W. MILNE ON THE 



The two are easily distinguished from each other, at a glance^ 

 by the shape of the spur-segment and the spurs. 



Habitat. — Moss ; very abundant all over Uitenhage district,, 

 and in other parts. 



Macrotrachela quadricomifera var. nov. rigida 

 PL 14, figs. 23-23C. 



Specific Characters. — Very large and strong ; trunk black- 

 brown in colour ; skin extremely thick. Rostrum stout and. 

 fairly long, with double lamella. Antenna long and stout, equal 

 to two-thirds neck width. Jaws very large ; teeth two large 

 and two small. Neck very stout. Trunk deeply plicate later- 

 ally. Rump very distinctive. Foot long and narrow. Spurs 

 excised below. Corona bold and large ; sulcus wide ; a short 

 seta on each wheel. Upper lip complicated. Deeply and. 

 beautifully stippled. Size up to l/40th inch. 



This is the animal mentioned in Part I (10) as possibly a 

 variety of Philodina childi, and is very likely the same as the- 

 CalUdina quadricomifera of very large size seen by Murray (4) 

 in moss from India. 



Since I wrote Part I, I have seen a few good specimens, found 

 in moss sent me by Mr. P. Smith, Umtata. In all these I made 

 a careful examination as to the nature of the back toe. The 

 animal frequently crawls against the cover-glass, but it take* 

 such long strides that one has usually to move the stage in 

 order to see the toes planted ; and as the foot is sometimes 

 thrown to the side, and sometimes directly under, it is almost- 

 hopeless to try to anticipate where the toes will appear. The 

 back toe has a double appearance, something like two blunt 

 cones, sliced longitudinally almost to the middle and placed 

 against each other. There was an appearance of muscles up- 

 each half, but there might have been up the middle also though 

 not seen. I thought there might prove to be an incipient toe 

 orifice at the end of each half, but was unable to detect any 

 signs of it. The toe appearance varies in different specimens^ 

 but fig. 23c gives a fair average. When the toes are almost with- 

 drawn, the orifice shows more like Philodina than Macrotrachela ► 



It is a quiet, slow animal, deliberate in all its motions, and 

 can be kept in a slide for a long time. The chances are that 



