322 W. BLAXLAND BENHAM. 



Fig. 3. — The vascular supply of the nephridiunij the loops 

 of which are represented in outline. E. The first loop. F F. 

 The second loop. G G. The third loop. N. Nerve-cord. S. 

 Septum. ^A^. Subneural blood-vessel. V. Subintestinal 

 blood-vessel, a. Somatic vessel from subintestinal vessel, b. 

 Its septal branch, c. Its nephridial (afferent) branch. & c'. 

 The further subdivision of this. d. Ventral portion of a com- 

 missural vessel, connecting the dorsal vessel with the subneural. 

 e. Its septal branch. /. Its nephridial (efferent) branch. 

 /'/'. Its further subdivisions to third loop, g g'. Dilatations 

 in the capillary vessels. 



