192 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
EULALIA (Sav.) Malmgren. 
Eulalia quinquelineata, n. sp. 
Head oval, broadest just in front of eyes, with a slight constriction at base of tentacles (fig. 27). 
Tentacles four, equal, three-fourths as long as head, stout, with acute points. Median unpaired tentacle 
arising about half way from eyes to the anterior margin of head, much more slender than paired and 
reaching beyond their ends. Two rows of small pigment spots begin at base of unpaired tentacle 
and extend back between eyes, forming an )( shaped marking. 
On first segment, one tentacular cirrus; on second, two (a dorsal and a ventral); on third, a long 
dorsal, tentacular cirrus, and a thick, fiat, ventral cirrus, the latter like the ventral cirri of succeeding 
segments. Tentacular cirri composed of a basal portion and a stout terminal portion pointed at end. 
Dorsal cirrus of second and that of third segments about equal in size and slightly larger than other two. 
First and second segments about two-thirds the diameter of the fourth and succeeding segments. 
Body 450 mm. long; without the parapodia 2 mm. wide at anterior end. It retains this width 
until near posterior end, where it narrows gradually. No anal cirrus present in the single specimen 
in this collection. Segments at anterior end six times wider than long; toward posterior end this 
proportion is diminished and the parapodia of successive segments are more widely separated than 
anteriorly. In the preserved specimen, which is doubtless more or less contracted, the gills of each 
segment overlap those of segment in front. On account of the great length of the body and the extent 
to which it was coiled I was unable to determine the precise number of the segments. Since, the length 
of the anterior segments is only about 0.33 mm. , increasing slightly toward posterior end, it follows that 
there must be at least 1,300 segments in the whole body. 
Figs. 27-29 . — Eulalia quinquelineata. Fig. 27, Head, x 7. Fig. 28, Parapodium, x 72. Fig. 29, Compound seta, x 257. 
Parapodium a single ramus with anterior bilobed lip and posterior shorter, rounded, one. Dorsal 
cirrus nearly a regular ovate, attached by ventral joint (fig. 28). Ventral cirrus comparatively large, 
ovate, hollowed out on side next parapodium. Both cirri show numerous ramifications of blood vessels 
in their interior. Toward posterior end the cirri become a trifle more acute at ends and the whole 
appendage is much smaller, but their relative proportions are about the same. Setfe compound, the 
basal joint long, swollen at end. Terminal joint broad at base, bent slightly and tapering gradually to 
an acute point, with row of minute teeth on concave edge (fig. 29^. 
Color of body yellowish brown, with a faint greenish tinge. Dorsal surface with five longitudinal 
black bands — a median, two admedian, and two lateral, the latter just at base of parapodia. Median 
narrow on first rive segments, becoming broader farther back. Lateral narrower than median, begin- 
ning on third segment. Admedian about half way between the other two, a little nearer the lateral; 
narrower and lighter colored than either. They begin on posterior edge of fourth segment as small 
spots, which are repeated on fifth and sixth segments, becoming continuous lines on seventh (fig. 27). 
Toward posterior end this line becomes much less conspicuous. On ventral surface a median and two 
lateral bands, similar in size and position to corresponding dorsal ones, but with no admedian bands. 
Collected from Hueares. 
