POLY CHiETOU S ANNELIDS OF THE HAWAIIAN ISLANDS. 
1153 
thread-like setae. At dorsal and ventral angles of neuropodium is a tuft of long setae with slender 
bases, their terminal portion slightly flattened, at first broader than the base, tapering gently to the 
long, acutely pointed, wavy, terminal portion. A double row of teeth, looking in profile like a single 
row of denticulations (fig. 12), in face showing as a row on either side. Dorsally only a few of these 
(2 in specimen drawn) , ventrally 10-12. 
Between the two bundles of finer setae was a single row of a few large setae, prominent on account 
of their size and brownish-yellow color. Each has abroad base (fig. 13), slightly widening and then 
rapidly tapering to the apex, which is bluntly rounded and provided with a tuft of stiff hair-like bris- 
tles at the end. Indefinite and poorly defined longitudinal and transverse markings appear on the 
surface of these setae. Ventral cirrus rather stout, gently tapering to blunt end. 
Parapodium of 16th-somite shows ventrally a tuft of setae like figure 13 and dorsally a smaller tuft 
of setae like figure 14. Here the terminal portion has the appearance of having been teased out into 
fine fibrils. Through median portion of parapodium a single row of very stout setae (fig. 15). At the 
apex each is prolonged into a long spine, which bears near its base a row of shorter spines. On one 
side edge of seta apex seems to be entire, on opposite side is a shallow indentation, from bottom of 
which arise numerous small spines. 
Apparently setae like figure 14 appear first on somite 7. From the fact that I find only a very few 
setae like figure 15 on anterior somites it is possible that those represented in figure 13 are merely 
mutilated specimens really belonging to this variety. I am unable, however, to discover in them any 
indication of the terminal depression from which the spines arise. Setae with numerous fine processes 
at the ends are especially numerous on somites behind about the 20th. 
Fragments of anterior ends of about half a dozen specimens/ contained in thick-walled mud tubes, 
outer surface of latter covered with deposit of thick brown mud. None were complete, and none were 
well preserved. 
Collected at station 3892, 328 fathoms, and from station 4027, 319 fathoms; both on a bottom 
of fine gray sand. 
Type (no. 5204, U. S. National Museum) an incomplete specimen from station 4027; length of 28 
anterior somites, 17 mm.; greatest width, including parapodia, 5 mm.; width of head; 1 mm.; length 
of protruded proboscis, 7 mm. 
Genus HARMOTHOE Kinberg. 
Harmothoe haliaeti McIntosh. 
Harmothoe haliaeti McIntosh, Report Challenger expedition, vol. xir, p. 90; British Annelids, pt. ii, Ray Society, p. 
336, pi. XXXVIII, fig. 27, pi. XXXIX, fig. 1,2,3. 
In the first-of the above publications McIntosh gives no illustrations, and in the second figures 
only sette. The other references which he quotes were not accessible to me. I have identified the 
specimens from the character of the setae and from McIntosh’s description of the head. (See fig. 16. ) 
Harmothoe haliaeti. (16) Head, x 12. (17) Seta, x 280. (18) Elytron, x 23, 
In the setae, however, it seems to me that the spiny protrusions on the sides are really rows of dis- 
tinct teeth (fig. 17), and not flat plates with denticulated ends, as McIntosh figures. In the Challenger 
report McIntosh describes the elytra as with smooth edges. In the second paper he quotes Haswell a , 
Polychaeta Liverpool District, p. 231, pi. xm, fig. 2. 
