Natural Science, vol. vii. 



\Plate XII. 



Worms and Arthropods. 



Fig. I. Pelago)iemertes rollcstoiii,Mose\cy; from dorsal surface ; enlarged. 

 P, proboscis, partly extended. I, intestine with diverticula (D). G, superior 

 nerve ganglion. V, vascular trunk. O, ovaries. CM, circular muscles. 

 LM, longitudinal muscles. Fig. 2. Pcripatus capensis, from the dorsal surface. 

 Fig. 3. Andania gif^antea, S>iehh\x\g; an amphipod; nat. size. Fig. 4. Acan- 

 ihozone carinata, Stebbing ; an amphipod ; enlarged. 



