[615] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 321 
arising from the summit of the stout and rather long pedicels.* There 
are usually five or more main divisions in good-sized specimens, these 
‘spread outward from one point, are recurved at the ends, and flexuous 
and bipinnately branched, the lower pinne being longest each time, 
and the ultimate divisions very numerous, fine, slender, and acute. 
The branchiz of the posterior pair, in normal specimens, are consider- 
ably smaller, with the divisions less numerous, and the ramuli longer 
and more delicate. The pedicels of the anterior branchie are about as 
‘long as the diameter of the body, and are very contractile, as well as the 
branches, so that the gills can be contracted into a small compass and 
withdrawn under the dorsal collar, beneath which the pedicels arise. 
This branchial collar is formed by the prolongation of the margin of the 
third segment; on each side of the median line above, it is divided into 
‘two narrow, lanceolate processes directed forward ; exterior to these there 
are two other wider and usually less prominent angles or lobes ; laterally, 
‘the collar is prominent, with a broadly rounded, thin margin, which 
‘forms another angle on each side beneath; on the ventral side its edge 
‘recedes and is but little raised. The tentacular collar, formed by the 
second segment, expands into a broad, rounded, prominent lobe on each 
side; and on the ventral surface becomes narrower, though still promi- 
nent, and recedes in a broad, rounded sinus behind the posterior lobe 
‘of the mouth. The cephalic segment is bordered by a rather broad 
frontal membrane, emarginate above, and broadly rounded laterally. 
‘Tentacles very numerous, long, and slender. Color, light red, brownish 
red to dark reddish brown; the annulations often darker; the upper 
surface is usually more or Teas specked with flake-white ; alone each 
side, below, there is usually a row of squarish spots, brighter red than 
the rest of the body, each pair connected by a narrow, transverse line 
-of red between the ventral shields, which are dull yellowish red; the 
Segments along the sides are often bordered with red; branchie usually 
green, specked on the outer sides of the branches with flake-white, and 
with internal blood-red vessels, showing distinctly in all the divisions ; 
the pedicel is usually bright red; tentacles, flesh-color. 
Length up to 70™™; diameter, 3™™. 
Great Egg Harbor to New Haven and Vineyard Sound; low-water 
amark to one fathom. 
LEPRZA RUBRA Verrill, sp. nov. (p. 382.) 
Body elongated, somewhat swollen anteriorly, rapidly tapering to the 
-very long, slender, posterior portion. All the segments posterior to the 
branchie bear small fascicles of slender sete, as well as uncini; pos- 
terior to the twenty-fifth setigerous segment the uncigerous feet become 
*In mentioning this species, on page 321, it was stated that it has but three gills, 
sand, in fact, this is the most frequent number. Among the numerous examples exam- 
dined, I have only recently found a specimen with both pairs of gills in their normal 
-condition. 
