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PACIFIC SCIENCE, Vol. XVIII, April 1964 
straight, heavy capillary spines extend about 0.3 
mm out from the body wall. Individually they 
are distally attenuated, and as a group they con- 
verge to produce a fairly sharp over-all terminal 
point. Cellular units or glands, columnar in 
shape, are clustered at the base of the notopodial 
spines. The bundles of notopodial spines are a 
dominant feature of the external morphology of 
this form and are therefore diagnostic in nature. 
Species of both Poly dor a and Boccardia have 
these posterior notopodial spines, but this is 
the first of the well-known species of Pseudo- 
polydora to have this characteristic. 
Pseudopolydora corallicola occurred in coral 
rock on the ocean side of Engebi Island of 
Eniwetok. It was associated with Eurythoe com- 
planata (Pallas). 
Pseudopolydora reishi n. sp. 
Fig. 3(1-3) 
Pseudopolydora reishi n. sp. was collected at 
three stations, all on Eniwetok. Two complete 
specimens measuring 1.2 mm and 2.0 mm had 
26 and 30 segments respectively. The pro- 
stomium is bifurcated anteriorly; the caruncle 
extends to the posterior margin of Segment 1 
( 1 ) . The palpi are short. Eye spots were not 
present on these specimens. There is no nuchal 
tentacle. 
Segments 1 through 4 are similar in noto- 
podial and neuropodial morphology; however, 
there is a successional increase in size of the 
segments from Segments 1 to 4. 
Segment 5 is greatly enlarged and is imme- 
diately separable morphologically from preced- 
ing and succeeding segments. This is an atypical 
characteristic for members of the genus Pseudo- 
polydora. The enlarged 5th has a poorly de- 
veloped bundle of dorsal capillary setae, with 
no definite post-setal lobe present. The usual 
U-shaped double row of setae has been flattened 
out so that the inner row becomes the dorsal row 
of setae made up of heavy spines with a modified 
falcate distal end lacking a sharp point. The ven- 
tral row consists of setae with an expanded distal 
end tipped by a fenestrated or hairy region (2). 
Setae are reminiscent of those found in other 
forms, including Boccardia columbiana Berkeley 
(1927) and B. proboscidea Hartman (1940), 
but not those of any other Pseudopolydora spe- 
cies. The neuropodium of the 5 th includes a 
few, well-developed capillary setae which project 
some distance from the body wall. 
Segment 7 has the first gills which are also 
present on Segments 8-11. Segment 8 has the 
first neuropodial hooded hooks. The appearance 
of the hooded hooks in Segment 8 is charac- 
teristic for the indicated genus, although that of 
Segment 5 and its setal arrangement are not. 
The hooded hooks are bidentate, with the main 
tooth large in comparison to the accessory tooth. 
The main tooth forms an angle of about 90° 
with the main shaft. 
The pygidium is funnel-shaped, having heavy 
walls made up of cells or cells and their products 
oriented to give a striated appearance, with the 
striations forming parallel, straight lines from 
the proximal base of the pygidium to the distal 
edge of the cuff. The dorsal pygidial notch is 
deeper than the ventral notch (3). 
Pseudopolydora reishi was found on Eniwetok 
Atoll at Engebi and Parry islands on the lagoon 
and ocean sides, respectively. On Parry Island 
this species was associated with areas of pollu- 
tion in marine waters, being found at stations 
located 20 and 150 ft from sewer outfalls; how- 
ever, on Engebi the collecting area was a region 
of hard coral rocks in sand not indicated as 
odoriferous. Pseudopolydora reishi was associ- 
ated with Phyllo chaetopterus ramosus Willey 
and Pseudopolydora antennata at the 150-ft 
sewer outfall station, and with Dodecaceria laddi 
Hartman and Pseudopolydora pigmentata in the 
hard coral rocks. 
In recognition of his endeavors in collecting 
the materials discussed in this paper, and because 
his field of research has included studies of 
marine pollution and indicator organisms, this 
form has been named for Dr. Donald J. Reish. 
Pseudopolydora pigmentata n. sp. 
Fig. 3 (4-6) 
Pseudopolydora pigmentata n. sp. was found 
at two stations on Eniwetok. Only incomplete 
specimens were available. One specimen with 16 
segments measured 1.6 mm. The peristomium 
of the specimen was slightly damaged but the 
anteriorly rounded prostomium was intact (4). 
The caruncle reaches to the anterior margin of 
Segment 2; however, the segmental furrow be- 
