196 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Eunice denticulata Webster. 
Eunice denticulata Webster, Annelida from Bermuda, Bull. U. S. Nat. Mus. 1884. 
Webster’s specimens, preserved in alcohol, were of a yellowish white color. One in this collec- 
tion, preserved in formalin, was a dirty white through most of the body, dorsal surface of head and 
anterior segments irregularly marked with dark green blotches. Gills appear as single filaments on 
the twenty-eighth setigerous segment. Head deeply bilobed. Tentacles smooth, equal, about twice 
as long as the head. The dorsal ramus of the parapodium contains comb-shaped setae, which are not 
described by Webster. The head of one large specimen was mottled with brown. 
Collected from stations 6065, 6079, on corals at Mayaguez, and from Ensenada Honda (Culebra). 
Eunice violacea-maculata Fillers. 
Eunice violacea-maculata Ehlers, Annelids of the Blake, p. 86, pi. 24, I, figs. 11, 12; pi. 25, figs. 1-7. 
Two long transversely banded anal cirri. Collected from Ensenada Honda (Culebra), and from 
station 6079. 
Eunice articulata Ehlers. 
Eunice articula Ehlers, Annelids of the Blake, p. 83, pi. 24, figs. 8, 9, 10. 
Gills begin on the third setigerous segment. Ehlers says there are two anal cirri. These have 
four, two long, articulated, and two very short ones. 
From Playa de Ponce reef was collected a specimen superficially very unlike Ehlers’ s description of 
this species, but agreeing so closely in most characters of importance that I have included it here. 
The differences are possibly sexual. The body is much larger and broader. General color, light 
brown. Segments 3, 7, 8, and 9 white. A narrow brown band at the base of each segment of antennae 
and cirri. A smaller specimen from station 137 shows these same color markings. 
Collected from stations 6065, 6098, 6096, and Playa de Ponce reef. 
Eunice siciliensis Grube. 
Eunice siciliensis Ehlers, Die Borstemviirmer, p. 353, pi. 16. (See Ehlers’s paper for references to previous literature.) 
In an animal of 350 segments the gills appear first as a simple fold on segment 145. Ehlers says 
that the distinction in length between the two pairs of anal cirri is not great. In the single perfect 
specimen in this collection two of these are much longer than the other two. 
Collected from station 6064, Caballo Blanco reef, and Arroyo. 
Eunice fucata Ehlers. 
Eunice fucata Ehlers, Annelids of the Blake, p. 91, pi. 25, figs. 8-20. 
Ehlers does not mention the presence of anal cirri. In one of these there are two long, rather 
fleshy cirri. Collected from Arroyo, Caballo Blanco reefs, and Boqueron Bay. 
Eunice auriculata, n. sp. 
Prostomium bilobed, each lobe triangular, with apex pointing forward. (See fig. 33. ) This lobing 
is much more prominent on the ventral face. Tentacles composed of a short articulated basal portion 
and a long, smooth, terminal portion, the latter tapering gradually to the end. Median antenna very 
long, reaching back to the eighteenth segment. Median paired antennae half as long as unpaired. 
Outer paired antennae about half as long as median. Peristomium long at sides, deeply hollowed in 
front, so that median length is scarcely two-thirds that of side. Median length about equal to three 
succeeding segments. Third segment about equal in width to succeeding. Nuchal cirri smooth, 
tapering gradually' from a rather thick base to a sharply-pointed apex. Apex reaching a little 
beyond front border of peristomium. The body gradually narrows to the fourth segment, and from 
here gradually increases in width to about the tenth. From there a gradual decrease again as far as 
thirtieth. Thirtieth segment a trifle narrower than the first. Dorsal cirri very large. Branchiae 
begin on nineteenth segment as a single filament. On the twenty-first this has divided into two, and 
at about the twenty-seventh it divides again. They never become very complex. 
Anterior parapodia blunt, with anterior and posterior lips, the former a little the longer and with 
a rounded lobe at its apex. (See fig. 34.) About 12 acicular setae in the dorsal bundle and over 20 
setae in lower bundle. The latter with long, acute, terminal joint. Ventral cirrus short and fleshy; 
