608 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



and series of hooks below. The anterior margin of the fourth setiger- 

 ous segment is prolonged into a thin membranous collar. Proboscis 

 swollen, longitudinally ribbed. Head with a prominent convex median 

 plate, and with a raised border on each side and behind, the lateral and 

 posterior lobes separated by notches. Anal segment funnel-shaped, the 

 edge surrounded by papillae. 



Clymenella torquata Yerrill. Plate XIV, figs. 71-73. (p. 343). 



Clymene torquatus Leidy, op. cit., p. 14 (146), 1855. 

 Great Egg Harbor, New Jersey ; New Haven ; Vineyard Sound ; Bay 

 of Fundy ; Saint George's Bank, &c. Low-water to 60 fathoms. 



Nicomache dispar Verrill, sp. nov. (p. 512.) 



Body elongated, with eighteen setigerous segments. Head elongated, 

 sub-conical, with a small central plate, and a depressed point in front, 

 and with low, narrow, lateral and posterior marginal lobes, separated by 

 slight notches ; on the anterior part of each lateral border there is a 

 cluster of small, reddish brown, ocelli-like specks. Buccal lobe coal- 

 escent with the cephalic above. Proboscis swollen and plicate. The first 

 two setigerous segments have small fascicles of slender, short setse above, 

 and a single uncinate seta or hook below on each side. The third seg- 

 ment has much longer setse in the upper fascicles and two hooks in the 

 lower ones. The fourth has still longer, slender setse in the upper fasci- 

 cles, and about eight hooks in each of the lower ones. In the following 

 segments the hooks become much more numerous. There is one short, 

 biannulated, anteanal segment, destitute of setse. Anal segment subur- 

 ceolate, as long as broad, cylindrical toward its border, which is fur- 

 nished on the ventral side with one long, slender cirrus, often as long 

 as the diameter of the anal segment, and two short lateral ones ; the 

 rest of the border has a few, mostly very small, distant, unequal, obtuse 

 papillse or denticulations. The anal orifice is situated at the summit of 

 a small cone, which rises from the bottom of the funnel. The last setig- 

 erous segment is longer than the anteanal, and a little longer than any 

 of the ten that precede it, which are all short and subequal, broader than 

 long, those toward the posterior end deeply incised at the intervals be- 

 tween them. The three anterior setigerous segments are shorter than 

 broad ; the fourth is twice as long ; the fifth is three times as long ; the 

 sixth is five times as long. The color, when living, was light red, trans- 

 lucent, with conspicuous bright red blood-vessels, and with a bright red 

 band at about the anterior third. The largest specimen obtained was 

 50mm i on g an( j 2.5 mm in diameter after preservation in alcohol. In this 

 specimen the anal segment is long, funnel-shaped, flaring but little toward 

 the margin, and with four or five slight transverse annulations. The 

 buccal segment has two transverse reddish lines on each side. 



Off Buzzard's Bay in 25 fathoms 5 fifteen miles east of Block Island 

 in 29 fathoms, sandy mud. It forms rough tubes of sand, which are not 

 very firm. 



