NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 25 



represent some of the ventral papillae which more or less closely cover 

 the ventral surface. These papillae are continued on the neuropodia, 

 thickest on the anterior sides. 



The prostomium is white, globular, with a stout anterior prolonga- 

 tion forming the base of the median ceratophore (pi. 2, fig. 16). At 

 the anteroventral margin is a pair of oval stalks bearing a pair of eyes 

 at the terminal ends. The dorsal ej^e is small, rounded, the ventral much 

 larger and more prominent. The median antenna is long, slender, greatly 

 exceeding the cirrus of the first segment but surpassed by the palpi. The 

 latter are smooth, white, tapering, inserted on the ventral side of the 

 first foot, and extend distally beyond the prostomial antenna. 



Parapodia are prominent in ventral view. The neuropodial lobe is 

 elongate, triangular. The first parapodium is weak, largely concealed by 

 the heavy bases of the palpi. Its setae are few, small. From the second 

 segment the notopodia and neuropodia are much stronger. The noto- 

 podial setae include a dorsal fascicle of stouter, slightly curved setae 

 faintly toothed on one side (pi. 2, fig. 29), and an inferior fascicle of 

 much smaller, hair-like setae. The neuropodial setae include 2 stouter, 

 falcate setae with several subterminal teeth (pi. 2, fig. 19), and an 

 inferior fascicle of finer, smaller, more numerous setae with a falcate 

 tooth and 2 rows of many teeth on the cutting edge (pi. 2, fig. 28). 



The third segment (cirriferous) contains a superior fascicle of about 

 7 heavy, acicular notopodial setae, faintly denticulated on one side (pi. 

 2, fig. 26). The setae in other fascicles resemble those in the second 

 segment. The dorsal cirrus is very long, slender, with a tip similar to 

 that of the prostomial antenna, extending distally about as far as the 

 palpi. The ventral cirrus extends distally about as far as the neuro- 

 podium, and has a slight terminal thickening. 



Median parapodia have thick, blunt notopodia with numerous heavy 

 setae, and triangular neuropodia with a few (about 3) long, falcate 

 setae (pi. 2, figs. 17, 18). Some of the superiormost notopodial setae 

 pierce the lateral margin of the elytrum, where the latter is attached 

 to the elytrophore. They are directed dorsally so as to lie on the dorsal 

 side of the elytrum. In addition, there are heavy notopodial setae di- 

 rected laterally and ventrally. The neuropodia project laterally beyond 

 the notopodia and have few (about 3) long, falcate setae. All are 

 similar and have a subterminal spur some distance below the terminal 

 fang (pi. 2, figs. 20, 21). The notopodial setae (pi. 2, fig. 22, 27) 

 have asperities over most of their surface save at the tip and near its 



