698 EEPOKT OF COMMISSIONER OF FISH AND FISHERIES. 



fascicles contain three to five some^iiat shorter aud straighter simple 

 setie. Oae specimen appeared to have four minute ocelli upon the up- 

 per side of tlie head. 



Dredged off Copper Harbor, 17 fathoms, sand; off Simmons' Harbor, 

 60 fathoms; aud ou the line from the Slate IsUmds toward Staunard 

 Rock, fourth haul, 159 fathoms. 



S^NURis LiMicoLA VerriU. 



American Journal of Science, 3d series, vol. ii, p. 4.50, 1871; aud Prehmmary Re- 

 port on Dredging in Lake Superior, p. 1024, 1871. 



"Worm more sleuder than the preceding, attenuated posteriorly, 

 composed of about 44 segments. Length about 8""", diameter 0™™.4. 

 Cephalic lobe blunt, conical. Setse in four fascicles upon each segment, 

 six to eight in each fascicle anteriorly, four or five posteriorly. The 

 set.T in all the fascicles are relatively long-, slender, curved, and acute. 

 Two tortuous red blood-vessels pass along the intestine, forming a loop 

 at each segment. Intestine moniliform. 



Dredged on the line betv7een the Slate Islands aud Staunard Rock, 

 fourth haul, 159 fathoms. 



Chirodeilliis Verrill. 



Allied to Sa'miris, but with six fan-shaped fascicles of seta3 upon each 

 segment, two of which are ventral, two lateral, and two subdorsal; setse 

 in the ventral and lateral fascicles four to nine, simple, acute, slender, 

 curved like an italic /; those of the dorsal fascicles stouter aud less 

 curved, three to six in each fascicle. Intestine wide, somewhat monili- 

 form. Anus terminal, large. 



Chirodrillus larviformis Verriii. 



American Journal of Science, 3d series, vol. ii, p. 450, 1S71 ; and Preliminary Re- 

 port ou Dredging in Lake Superior, p. 1024, 1871. 



^' Body rather short and not very slender, cylindrical, obtuse at both 

 ends, distinctly aunulated, composed of about 38 rings. Length about 

 7^"\5 ; diameter, l'""\25. Cephalic lobe short, conical, obtuse; mouth 

 large, semicircular beneath. Ventral fascicles of setie near together, 

 with about five sette, which are rather short, simple, acute, little 

 curved ; lateral fascicles with five or six setse of similar form and size ; 

 subdorsal ones similar. When preserved in alcohol, the body is usually 

 curved ventrally, or in a simple coil. Color, when living, translucent 

 whitish ; intestine slightly greenish. A thickened smooth zone com- 

 mences behind the tenth setigerous ring, occupying the space of about 

 four segments. 



Off Copper Harbor, 17 fathoms, sand ; off' Simmous' Harbor, 59 fath- 

 oms, clayey mud. 



Chirodrillus abyssoriim Verrill. 



xiuierioau Jonrnal of Science, 3d series, vol. ii, p. 450, 1371; aud Preliminary 

 Rexiort ou Dredging in Lake Superior, p. 1024, 1871. 



