[609] INVERTEBRATE ANIMALS ‘OF VINEYARD SOUND, ETC. 315 
MALDANE ELONGATA Verrill, sp. nov. (p. 343.) 
Body large and much elongated, cylindrical, obliquely truncated at 
both ends; with nineteen setigerous segments, those of the middle region 
elongated ; head depressed, with its dorsal surface very oblique; median 
lobe low, convex, obtusely rounded in front; lateral marginal lobes, or 
folds, low, rounded, thickened, separated by a shallow emargination 
from the posterior transverse fold, which is also thickened, little elevated, 
and divided into two parts by a slight sulcus; from the notch between 
the lateral and posterior lobes of the head, a lateral oblique sulcus 
curves downward and backward, and joins the first of the two trans- 
verse sulci, which are strongly marked on the ventral side of the buccal 
segment. Anterior setigerous segments strongly biannulated ; the first 
two are short, the length about equal to the diameter; the next two 
are considerably longer; and those farther back become very much 
elongated; the last setigerous segment is short. The segments are 
considerably swollen where the sete arise, especially in the middle 
region. The upper sete are long and slender, mostly about half the 
diameter of the’body, and form rather large fascicles on most of the 
segments. The last segment is obliquely truncated, its posterior border 
surrounding the base of the large anal process, which is obliquely placed, 
foliaceous, obovate, with the posterior edge broadly rounded, the upper 
surface concave, and the margin entire. Color dark umber-brown, or 
reddish brown, iridescent; the swollen parts of the rings are lighter 
yellowish brown, or grayish brown, the dark red blood-vessels often 
Showing through; near the bases of the setz there are usually small 
dark colored specks; head and buccal lobe thickly specked with dark 
brown or blackish. 
Length of largest specimens, 300"™; diameter, 4™" to 5™™; more fre- 
quently about half this size. 
Savin Rock, near New Haven; in sandy mud at low-water mark, form- 
ing thick tubes composed of fine mud. 
RHODINE ATTENUATA Verrill, sp. nov. (p. 508.) 
Body slender, elongated, with the segments strongly marked, and the 
first setigerous segment very long. Head elongated, depressed, ob- 
. tusely rounded in front; median lobe, or ridge, broad and but little 
elevated, except near the front of the head, where it becomes suddenly 
narrowed, more convex, with well marked fovez on each side; lateral 
lobes rudimentary, scarcely apparent; on the posterior part of the head 
there is a prominent transverse elevation. Buccal lobe confluent with 
the cephalic. First setigerous segment swollen anteriorly and about 
as broad’as the head at its anterior end where the sete arise, but nar- 
rowed and gradually attenuated backward, its total length being about 
eight times its diameter; second and third setigerous segments about 
equal, nearly twice as long as broad, swollen in the- middle, the front 
margin of each prolonged into a sheath-like collar; the three next 
22 Vv 
