NO. 3667 POLYCHAETES—-BANSE AND HOBSON 5 
present on the lower neurosetae (fig. 12); with spines, they are 20u-25y 
long. It could not be made out whether there are two or three rows, 
but in any case, the rows of scales are restricted to one-half to three- 
fifths of the circumference of the setae so that, in side view, usually 
only the cutting edge of the seta appears as pectinated. The spines 
on these scales are finer than those of the upper neurosetae, and 
there are almost twice as many spines per scale. 
Only two thin, wrinkled, and colorless elytra (fig. 17) are left. 
Among fairly numerous conical microtubercles of 20y-30y height 
(fig. 1k) there are some filiform papillae, which become very numerous 
toward the outer margin of the elytron. Very conspicuous is a row of 
conical macrotubercles about 110y high (fig. 10). 
The color of the body is yellow brown in reflected light. The para- 
podia of the paratype, collected in February, are filled with exceedingly 
numerous, loose, and almost round eggs of about 654 diameter from 
setigers 7 or 8 onward. 
The fragment of a juvenile collected in July, with a width of almost 
2 mm with parapodia but without cirri, and 0.7 mm without para- 
podia, shows the same characters as the adults, except that the 
prostomium is more pointed and the number of setae is small; all 
elytra had been lost. 
The name refers to the row of macrotubercles on the elytra. 
Diaenosis.—A Eunoe species with blunt prostomium and dispro- 
portionately slender paired antennae. Notosetae with pointed tips. 
Two kinds of neurosetae. Elytra with conical microtubercles and one 
row of conical macrotubercles, and numerous filaments on the margins. 
DIFFERENTIAL DIAGNOSIS.—Hunoe uniseriata is best characterized 
by its blunt prostomium, the slender paired antennae, the arrange- 
ment and form of the elytral macrotubercles, and the tips of the noto- 
setae. There are few species with a blunt prostomium or reduced 
prostomial peaks among the Hunoe species listed by Hartman (1959, 
1965b). Among these, H. ewra Chamberlin, E. sentiformis Ushakov, 
E. shirikishinai Imajima and Hartman, F. spinicirris Annenkova, LE. 
subtruncata Annenkova, and possibly E. oerstedi Malmgren have 
notosetae with blunt tips, which is not the case in EL. wniseriata. 
Notosetae are pointed in /. crassa (Treadwell) and E. nodosa dybow- 
skyi Augener, but the conical and other macrotubercles on the elytra 
are arranged differently from those on EH. unisertata. Hunoe nodosa 
(Sars) as described by Pettibone (1954, 1963) can have a blunt 
prostomium; there are papillae, however, in addition to the dorsal 
tubercles above the base of the dorsal cirri. Further, the very con- 
spicuous row of macrotubercles near the external borders of the elytra 
are broad and rounded or jagged, not pointed as in the present 
species. Only one kind of neurosetae has been reported for . nodosa. 
