of the Virginian Coast, 



229 



above, flat below ; width of the first fourteen segments 

 uniform, after the 14th decreasing gradually to the minute 

 terminal one. 



The 1st, 2d and 3d segments are short ; 4th and 5th 

 equal in length and width ; 6th to 14th, inclusive, length 

 double the width ; after the 14th, they become gradually 

 shorter, the last ones being very short and crowded. 



Color: general color of body yellowish-white. Anten- 

 nae, front of head and all cirri, white. Posterior part of 

 head and first segment (in one case the second also), dark 

 brownish-red. Between the eyes there is a narrow band, 

 extending back to the middle of the first segment, of a 

 darker shade than that of the head generally ; and from 

 the posterior eyes, on each side a similar line runs back to 

 the third segment. Bands of the same color as the head 

 cross the posterior part of the foUowiug segments (extend- 

 ing to the ventral surface, but not crossing it), viz: from 

 the 3d to the 11th inclusive, 14th, 17th, 20th, and on every 

 fourth segment after the 20th, except that the last three 

 are on consecutive segments, and not well marked. On 

 the anterior part of the body the width of these bands is 

 about one-half the length of the 4th segment. As the seg- 

 ments shorten, after the 14th, this band also grows narrow. 

 The lower surface of the base of the dorsal cirri, after the 

 '7th, has a spot of the same color. 



The movements of this species are peculiarly slow, the 

 direction of its feet and setse are such that it seems to walk 

 on the tips of its setae. 



Length of specimen described, 11°"™; greatest diameter, 



Number of segments, 80. 



Length of head and first 14 segments, 5™™. 



On one specimen (lost before the examination wag 

 finished) a new head was forming back of the 14th segment. 

 Trans, ^a;.] 30 



