746 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



CoNiLERA CONCHARUM Harder, (p. 572.) 



This species, previously quite rare, was taken this year iu large num- 

 bers, in Vineyard Sound, both in spring and autumn, by Mr. Yinal I^. 

 Edwards. 



Annelida. 

 Progeria ornata Verrill, sp. no v. 



Autolytus (?), banded species, this Report, p. 398. 



Head short and broad, bluntly rounded or subtruncate 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 antennse about one-fourth as long as the 

 median one; the other two pairs of antennae 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 ; setic 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 distances. Length, about 15°^'^ ; breadth, 0.5°^™. 



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. 



Turhellaria. 



Ehynchoscolex papillosus Diesing. 



Revision der Turbellarien, op. cit., vol. xlv., ]i. 245, 1862. Ehyuclioproholus papil- 

 losus Sclimaida, Neue vrirbell. Thiere, i, p. 1, 11, Plate 2, fig. 25 (t. Diesing). 

 Hobokeu, New Jersey, in brackish water, (Scbmarda). 



Polyoelis 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 forther forward 



