POLY CH A5TOTT S ANNELIDS OF THE HAWAIIAN ISLANDS. 
1171 
kinds, in anterior somites stalk tong, cylindrical, terminal portion flattened, bent, and with acute apex 
(fig. 55); posteriorly stout, hooked setae, with denticulated end surrounded by a “guard” (fig. 56). 
There may be a number of stout, very dark aciculae in each parapodium, extending to a considerable 
distance beyond its end. The end is rounded and more transparent, having a reddish color by trans- 
mitted light. 
In many respects this form agrees with the description of L. japonica Marenzeller, as given by 
McIntosh (Challenger Reports, vol. xii, p. 243). It differs mainly in the character of the jaws, and 
in the absence of compound setae. It is possible that the latter may have been lost. 
Fragments of 4 specimens were collected at station 4132, 257-312 fathoms, on a bottom of fine 
gray sand and mud, and from 4027, 319 fathoms, with a bottom similar to the former. 
Type no. 5214, U. S. National Museum. Length of first 50 somites about 15 mm.; collected at 
station 4027. 
Lumbriconereis minuta, new species. 
Length 20 mm., breadth 2 mm. Possibly an immature form. 
Head moderately elongated, about as wide as long, with blunt apex. No 
eyes. Maxillary apparatus black, the maxillae gently curved, rather stout. 
Dental plate on right with 5 teeth, on left with 4. Anterior to these are various 
accessory plates, which in the preparation showed as in figure 57. As these 
w r ere more or less injured in removing they probably do not accurately repre- 
sent the natural condition. 
Parapodium uniramous with posterior lip longer than anterior. Setae few 
in number, of 2 kinds; one stout, with one large and a series of smaller hooks, 
the whole surrounded by a translucent “guard” (fig. 58); the second form very 
long, slender, tapering to apex with a wing along edge of distal tw r o-thirds, w'inged portion bent so as 
to form an angle with basal portion. 
Collected at station 4083, 238-253 fathoms, on a bottom of fine gray sand. Type no. 5215 U. S. 
National Museum. A specimen 20 mm. long. 
Genus ARABELLA (Grube) Ehlers. 
Arabella iridescens, new species. 
An incomplete specimen, about 75 mm. long. Width of first somite, 2 mm., toward posterior end 
of fragment, 4 mm. Anterior parapodia about two- thirds 
length of later ones, reaching full length at about somite 16. 
Head rounded, nearly as broad as first somite, length 
equal to first 3 somites (fig. 60). 
Parapodium uniramous (fig. 59) with a long median lobe 
arising posterior to the setae, and extending about half way of 
their length. A very small dorsal cirrus, no ventral cirrus. 
Most setae had been broken. Figure 59 shows as well pre- 
served a parapodium as I could find, with 3 intact setae. 
Imbedded in the parapodium were a number of the basal 
portions of other setae which had broken away. A single 
seta, looking as if intact, had a rounded end. Two very 
delicate colorless spines protruded from the parapodium just 
FIG 59. Fig. 60. Fig. 61. dorsal to the setae. 
Arabella iridescens, new species. (59) Parapo- Setse ( fi S- 61 ) with basal P ortion cylindrical, terminal 
dium, x 23. (60) Head, x 5. (61) Seta, x 183. portion flattened and bent, ending in an acute point. At 
outer edge of bend a row of minute, sharp, denticulations. 
Collected at station 3856, in 127 fathoms, on a bottom of fine sand and yellow mud. Type no. 
5216, U. S. National Museum. 
Fig. 57. Fig. 68. 
Lumbriconereis minuta , 
new species. (57) Jaw, 
X 57. (58) Seta, x 280. 
