318 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [612] 
CISTENIDES GOULDII Verrill, sp. nov. Plate XVII, figs. 87, 87a. (p. 
323). 
Pectinaria Belgica Gould, Invertebrataof Massachusetts, 1st ed., p. 7, Plate 1, fig, 
1 (tube), 1841 (not of European writers). Pectinaria auricoma Leidy, op. cit., 
p. 14 (146), 1855 (not of European writers), 
Body rather stout, little curved. Head with the dorsal surface 
obliquely truncated, its posterior marginal fold with a smooth border. 
Antenne long, tapering, acute; frontal membrane or veil semicircular, 
its edge divided into rather long, slender, acute papille, about twenty- 
eight in number. Cephalic sete in two broad groups, each containing 
about fifteen light golden sete, which are somewhat curved upward, 
with long, slender, very acute tips, those in the middle of each group much 
the longest. Tentacles stout, obtuse, flattened, and folded up so as to 
form a groove beneath. Color light red or flesh-color, handsomely mot- 
tled with dark red and blue. : 
Length up to 40™™; diameter, 7™™. 
Great Egg Harbor to New Haven and Cape Cod; low-water to 10 
fathoms. 
This species can easily be distinguished from C. granulatus, which is 
common in the Bay of Fundy, by the cephalic setz or spines, which are 
fewer, much stouter, obtuse, and darker colored in the latter. 
AMPHARETE GRACILIS Malmgren. Plate XVI, fig. 83. (p. 508). 
Nordiska Hafs-Annulater, Ofvers. af kongl. vet. Akad. Férh., 1865, p. 365, Plate 
26, figs. 75-75p. 
‘Body flesh-colored, greenish posteriorly, with a conspicuous red median 
vessel; branchiz light sea-green. 
Length, 25™™ to 35™™; diameter, 2.56™™ to 3™™; length of branchiz, 
6™= to 9™™, 
Off Gay Head, 10 fathoms; off Martha’s Vineyard, 23 fathoms; east 
of Block Island in 29 fathoms; Bay of Fundy, 10 to 90 fathoms; north. 
ern coasts of Europe, Bahusia, at Koster Island, in 130 fathoms. Our 
specimens differ slightly from the description and figures of Dr. Malm- 
gren, especially in usually having but twelve uncigerous segments in 
the posterior region, instead of thirteen, found by him in the European 
specimens. This may be due to difference of age or sex. There. are, 
however, thirteen in one of our specimens. 
AMPHARETE SETOSA Verrill, sp. nov. (p. 416.) 
Body rather thick anteriorly, tapering rapidly backward. Cephalic 
lobe acute, with a much shorter, small, lateral lobe on each side. Bran- 
chiz eight, transversely wrinkled, rather short; in preserved specimens 
about equal to the breadth of the body. Palmata, or cephalic fascicles 
of set, short and broad, rounded, fan-shaped, the sete being nearly 
equal, the ventral ones a little longer than the lateral. Fourteen seg- 
ments bear small fascicles of long sete, supported by prominent lobes 
at the base. The posterior region consists of about ten uncigerous seg- 
