Figure 88. 



Cttle.v dupreei: i, larva; 2, head from beneath; 3, mouth brushes; .4, mandible; s, 

 antenna; 6, mentum; 7, terminal segments, showing siphon and ' tracheal gills; 8, scale 

 of the 8th segment; 9, a siphonal spine: enlarged. (Original.) 



