POLY CH2ETOUS ANNELIDS OF THE HAWAIIAN ISLANDS. 
1149 
Genus HESIONE Savigny. 
Hesione paciflca McIntosh. 
Hesione pacifica McIntosh, Report Challenger Expedition, vol. xii, p. 184, pi. xxix, fig. 2, pi. xxxn, fig. 14. 
McIntosh records that the tips of all setse were broken in his specimens. Mine showed complete 
compound setse (fig. 4). A noticeable feature is a reddish brown transverse band on the 2d setigerous 
somite. 
Eig. 4.— Compound seta of Hesione pacifica, x 183. 
Collected at stations 3969, 15 to 16 fathoms, on a bottom of coarse sand, of shell, and coral; 
3876, 28 to 43 fathoms, on sandy bottom; 4061, 24 to 83 fathoms, On coral, sand, and coralline nodules; 
and 4168, 20 to 21 fathoms, on coral, sand, and foraminifera. 
Family POLYNOIDdi. 
Genus P0IYN0E Savigny. 
Polynoe mag-nipalpa? McIntosh. 
Polynoe magnipalpa McIntosh, Report Challenger Exp., vol. XII, p. 118, pi. xii, fig. 6, pi. xiv, figs. 1, 6, pi. xviii, 
fig. 5, pi. x A, figs. 5, 6. 
A single specimen, probably of this species. The lateral tentacles were relatively larger, and the 
palps smaller than in McIntosh’s specimen. He describes clavate papillae on border of elytron. 
These are not shown in his drawing, and do not appear in the Hawaiian specimen. 
Collected at station 3968, 14£ to 16J fathoms, on bottom of coarse stone and coral. 
Polynoe mirabilis McIntosh. 
Polynoe mirabilis McIntosh, Report Challenger Exp., vol. xii, p. 121, pi. xvi, fig. 1, pi. xii A, figs. 9 to 11. 
Oligolepis violacea Levinsen, Kara Havets, Copenhagen, 1886, p. 290, pi. 25. 
McIntosh states that the “pedicels of nine pairs of scales exist in the specimen,” and that “traces 
of two pairs of cirri occur on each side of the anus,” thus implying that his specimens were entire. 
Of the Hawaiian specimens, none was entire; one had 25, and others 28 elytrophores on a side, with a 
total number of somites of over 70. In a personal communication Professor McIntosh tells me that 
while his description was correct as applied to his single, imperfect specimen, the form described by 
Levinsen is undoubtedly the same, and is described as having 25 bristle-bearing feet. In view of the 
similarities between these and McIntosh’s description I am certain that they all belong to his species, 
and that the apparent lack of agreement in number of somites is due to the fact that none was 
complete. 
McIntosh describes a filiform process on the inner anterior border of the head lobe, which he 
thinks may be the homologue of the antenna. Some of the Hawaiian specimens showed a similar 
process, but others had a slender tentacle a trifle longer than the head, and, like the cirri, with a slight 
swelling just behind the pointed apex. The “filiform process” is evidently merely a remnant of the 
antenna, of which the greater portion has broken away. 
No elytra were present. Largest specimen 80 mm. long, 15 mm. wide, exclusive of parapodia. 
Width to tip of parapodium, 30 mm. 
On the locality label was noted, “livid flesh pink or light beef pink.” 
Collected at stations 4028, 444 to 478 fathoms, on gray sand and globigerina ooze; 4022, 399 to 
374 fathoms; 4113, 433 to 395 fathoms; and 4014, 399 to 362 fathoms, the three latter on coral, sand, and 
foraminifera. 
Polynoe alba, new species. 
Each lateral half of head pear shaped, with anterior portion prolonged to form base for tentacles 
(fig. 5) ; median tentacle filling entire space between laterals; whole head white, looking as if incrusted 
with a calcareous deposit, this much denser on bases of tentacles; all tentacles, except basal joints, 
