1162 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
ing a short distance into an indentation in posterior dorsal border of prostomium. Some specimens 
showed irregularly distributed patches of reddish pigment on dorsal surface of head and along dorsal 
median line. None of the specimens were well preserved, such organs as cirri suffering much disinte- 
gration. The account of parapodia, etc., is based on what seemed to be the most normal individuals. 
Second parapodium of female (fig. 34) with 4 lobes, one dorsal and one ventral, a long posterior 
and a short pointed anterior, into which extends the aciculum. Dorsal and ventral cirri with broad 
base and narrow apex, resembling one another in form, but the dorsal considerably the larger. Setae 
compound, terminal joint toothed. 
Fig. 36. 
14 
Nereis kobiensis. (33) Head, x 11. (34) Second parapodium of female, x 45; d. c. and v. c., dorsal and ventral cirri; a. I. and 
p. 1., anterior and posterior lobes. (35) Eleventh parapodium of female, x 45; lettering as before. (36) Falcate seta 
from eleventh parapodium, x 280. (37) Twenty-fifth parapodium of female, x 45. 
Eleventh parapoditim of female with slender dorsal and ventral cirrus, and 3 blunt lobes; aciculae 
projecting into spaces between these lobes; a shorter posterior and longer anterior secondary lobe at 
point where apex of aciculum reaches edge of parapodium (fig. 35). Near dorsal aciculum is a pecu- 
liar hook-like seta described by McIntosh. Dorsal setae and dorsal half of ventral bundle with long, 
slender, toothed terminal joint. Ventral half of ventral seta bundle with few (only 1 in parapodium 
drawn) setae like those of dorsal half; most of this bundle with “falcate” setae. Basal joint with 
broad end, marked by longitudinally directed spiral lines, with transverse markings between the latter 
(fig. 36) . Apical portion short, with narrow base, widening rapidly to strongly hooked tip, concave 
edge with about 10 long, narrow spines. 
