OCSEKVATIOXS ON SOME SOUTH AFIUOAN TERi\[ITES. 407 



Avitli other moinuls or lead to feeding grounds. At irregular 

 intervals along their length, seldom at a distance of less 

 than two inches apart, pouches are excav;ited on both sides 

 {PI. XXIX, figs. 15, 15a, 15?), 15c, Ibd) ; these extend outwards 



Text-fig. 12. 



Eutermes trinervius. Sketch plan of system of galleries 

 showing nest connections and palmate termini. All the 

 galleries in the triangle formed by nests b, k. and G are ex- 

 posed. Only around nest B are all the radiating galleries 

 exposed. Actual distances apart of nests — A to E. 120 ft. ; a to 

 K, 102 ft. ; K to E, 102 ft. ; B to C, 6 ft. 



and downwards, and usually undercut the path. Where, by 

 chance, two such pouches are opposite each other the path- 

 way is often completely undercut, so that it forms a bridge 

 across a small chasm. These pouches are all snb-globular, 

 and, as a rule, measure 1 in. in the long diameter, and bulge 

 out about three quarters of an inch from the edge of the 

 pathway. The apertures into them, fi-om the side-walls of 



