E. S. GOODRICH. 
1 18 
EXPLANATION OF PLATE 8, 
Illustrating’ Mr. E. S. Goodrich’s “Notes on the Nephridia 
ot‘ Dinophilns and the Larvas of Polygordins, Echiurus, 
and Phoronis.” 
Reference Letters. 
h. c. Blood-corpuscles, c. Cilium. c. m. Centi’al mass of cytoplasm 
containing a single nucleus, c. t. Connective tissue, fe. Flagellum 
inside the solenocyte tube. n. Nucleus, n. c. Neijhridial canal. 
Nephridiopore. pr. Cytoplasmic process, Mass of cytoplasm 
at end of tube. s. Septum separating the co3lom from the hajinocade 
in which lie the solenocytes. t. Tube of solenocyte. w. Thin cyto- 
plasmic web. 
Fig. 1. — Restoration from sections of the inner end of the nephridium 
of Dinophilns tseniatus. The organ is represented as if cut longi- 
tudinally. 
Fig. 2. — Drawing from life of the whole nephridium of the larva of 
Polygordius neapolitanus. 
Fig. 3. — Drawing from life of the whole nephridium of Echiurus sp. 
Fig. 4. — Drawing from life of the inner end of the nephridium of 
Actinotrocha branch iata. 
