316 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



segments are short and rounded, about as long as broad, much narrowed ^ 

 at each end, and swollen in the middle ; next two about twice as long as 

 broad; succeeding segments more elongated. Anal segment wanting 

 in the specimens examined. 



Length about 50 mm ; diameter about l mm . 



Off Gay Head, 6 to 8 fathoms; fifteen miles east of Block Island, in 

 29 fathoms, sandy mud. 



The Clymene urceolata Leidy, from Great Egg Harbor, will probably 

 be found on the Xew England coast, but we have not met with it. It 

 is peculiar in having an urceolate anal segment, with a smooth margin. 



AMMOCHARES, species undetermined, (p. 508.) 



A species which constructs slender, flexible tubes, covered with grains 

 of sand, regularly and curiously attached by one end in an imbricated 

 manner, was dredged fifteen miles east of Block Island, in 29 fathoms 

 sandy niud, and in 23 fathoms off Martha s Vineyard. The worm is 

 very slender, flesh-color, with a red dorsal vessel, and two small, red r 

 ocelli-like spots. 



, KOTOMASTUS LURIDUS Verrill, sp. nov. (p. 342.) 



Body long and rather large, composed of numerous segments, nearly 

 cylindrical when living, and tapering but little, except close to the 

 ends. In preserved specimens the anterior region, including about ten 

 segments, is often a little swollen and slightly larger than the rest of 

 the body; at other times it is even more slender than the posterior 

 region. Head small, acute. Proboscis short and broad, swollen; in 

 full expansion nearly twice the diameter of the body, nearly smooth, 

 dark blood-red. The segments of the anterior region are longer than 

 broad, in extension nearly twice as long, biannulated, and each of the 

 annuli is again annulated with several transverse, more or less irregu 

 lar sulci or furrows ; ten of these segments bear fascicles of slender 

 seta3 both above and below, the fascicles on the first two setigerous 

 segments being very small, and containing few setre. The segments 

 following the tenth setigerous one have a small transverse row of 

 slender uncinate seta3 above, and a longer lateral transverse row of 

 the same kind of setae on each side; the &quot;feet,&quot; or setigerous lobes, 

 are but little prominent, the upper ones being dorsal and much smaller 

 than the lateral ones. The surface of the body is transversely wrinkled, 

 and covered with minute, irregular reticulations, giving it a slightly 

 granulous appearance. Color, when living, dark purplish brown, with 

 a bluish iridescence anteriorly, and a darker median dorsal line pos 

 teriorly ; minute, white, raised spots, or slight papillae, are scattered 

 over the surface. 



Length, 150 mm or more; diameter, 2 ram . 



Savin Bock, near New Haven; in muddy sand, at low- water mark. 



