452 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [746] 
CONILERA CONCHARUM Harger. (p. 572.) 
This species, previously quite rare, was taken this year in large num- 
bers, in Vineyard Sound, both in spring and autumn, by Mr. Vinal N. 
Edwards. 
Annelida. 
PROCERZA ORNATA Verrill, sp. nov. 
Autolytus (?), banded species, this Report, p. 398. 
Head short and broad, bluntly rounded or sabtruneate above, slightly 
bilobed or emarginate below. Eyes moderately large; the anterior pair 
wider apart. Median antenna white, very long, slender, variously 
curled, reaching to about the twelfth body-segment; posterior tenta- 
cles also very long and slender, reaching to about the ninth segment, 
white at the tips; inner antennze about one-fourth as long as the 
median one; the other two pairs of antennz and tentacles about one- 
fourth as long as the median one; tentacular cirri of the second (post- 
buccal) segment short, about equal to the diameter of the body. Dorsal 
cirri short, about one-third as long as the breadth of the body ; setiger- 
ous lobe short and broadly rounded; sete short. Gizzard small, short, 
elliptical, situated at about the eighth segment. Caudal cirri two, slen- 
der, tapering, their length about equal to the diameter of the body. 
Color of the body white or pale yellowish, annulated with bands of 
bright red at unequal distanees. Length, about 15™™; breadth, 0.56™™, 
Long Island Sound, off New Haven; and at Thimble Islands, 1 to 5 
fathoms, among hydroids and bryozoa. 
ETEONE ROBUSTA Verrill.  (p. 588.) 
This species, previously known only from a single specimen, was taken 
at Wood’s Hole, in abundance, and of large size, in November, by Mr. 
Vinal N. Edwards. 
Turbellaria. 
RHYNCHOSCOLEX PAPILLOSUS Diesing. 
Revision der Turbellarien, op. cit., vol. xlv., p. 245, 1862. Rhynchoprobolus papil- 
losus Schmarda, Neue wirbell. Thiere, i, p. 1, 11, Plate 2, fig. 25 (t. Diesing). 
Hoboken, New Jersey, in brackish water, (Schmarda). 
POLYCELIS MUTABILIS Verrill, sp. nov. 
Body much. depressed, thin, changeable in form, often elliptical or 
oval, frequently broad and emarginate in front, and tapered posteriorly. 
Marginal ocelli minute, black, forming several rows along the front 
border, but only one row laterally. Dorsal ocelli larger, forming three 
pairs of rather ill-defined clusters; the outer clusters are largest, con- 
vergent backward; a pair of smaller clusters are situated a little in 
advance, and nearer together; the third pair is a little farther forward 
