212 



Annelida Ghcetapoda 



cle originates a little outside of and behind the attach- 

 ment of the elytra. Ventral ramus of foot stout, elongate, 

 conical, widely excavated for the transmission of the setae, 

 and obliquely truncated from above downward. Dorsal 

 ramus a mere papilla. Setae of dorsal ramus (f. 31) few, 

 delicate, tapering gradually to a minute capillary ending, 

 one edge linely denticulated. One stout concealed acicula. 



Ventral setae in two bundles ; superior with one or two 

 stout setae (f. 29) usually with bluntly rounded apex, 

 beneath which for a short distance one edge is minutely 

 denticulated. In the upper bundle there are also from 

 one to three bidentate setae. Below the apex on each side 

 is a series of rather long sharp teeth, from 6 to 8 in num- 

 ber. These setae are not quite so large as those mentioned 

 above. In the lower bundle are from 6 to 12 bidentate 

 setae e^ery way similar to those of the upper, but a little 

 more delicate (f. 30). All the setae however are stout 

 and long, except those of the anterior feet which are de- 

 licate. 



The first ventral cirrus is in all respects similar to the 

 dorsal cirri ; its basal article is long, and arises from the 

 base of the foot. After this one they originate at the 

 inner third of the foot from a small papilla. They are 

 minute, conical. At the outer posterior angle of each 

 segment, below, is a small cylindrical papilla, projecting 

 backward and downward, not visible on a few of the 

 anterior segments. 



Facial papilla. Just in front of the mouth, beneath the 

 base of the median antenna is a small, facial tubercle or 

 papilla, bluntly rounded externally. Anal cirri two, 

 similar to dorsal cirri. Body very slightly convex above 

 and below. 



Color. When divested of the elytra the dorsal surface 

 is usually reddish-purple, with narrow bands of darker 

 purple between the segments. Some specimens again are 



