ANNELIDA FROM BERMUDA. 3 I. J 



ventral liiigula retains its leujitli but loses in diameter. The ventral 

 cirrus remains unclianged. Other specimens, certainly belonging to 

 this species, have the feet more delicate, the dorsal and ventral cirri a 

 trifle longer. (Figs. 24'^, 2G".) 



Anal cirri tilitbrm, as long as the last ten segments. 



In the dorsal ramus there are from O-IO setie (Fig. 28) with long 

 delicate appendix, the terminal i>ointsof the stem equally long. These 

 setSB form the upper part of the ventral bundle, while its lower part is 

 made up of falcate setae, appendix short (Fig. 27), terminal i)oints of 

 stem very unequal in length. 



Body convex above, slightly convex below; of nearly uniform width 

 for the anterior three-fourths; tapering slightly along the jjosterior 

 fourth, but ai)pearing to retain a uniform diameter, on account of the 

 lengthening of t!ie feet. A few of the anterior segments also taper 

 slightly. 



Length, 35-50""". 



Width, 3-4""". 



Number of segments, 50-80. 



Kerkis (tBAculis, n. sp. 



(Plate IX, Figs. 29-35.) 



Head wide (Fig. 29), slightly ctmvex laterally and above, a little con- 

 cave behind, produced in front to form the bases of the autennie. 



Eyes q,uite large, placed well in front ; those on either side nearly in 

 contact. 



AntennfB with long cylindrical basal articles, produced from the head, 

 iust within the anterior eyes ; they are long, conical. 



Palpi long and stout, curved inward near the base ; terminal articles 

 quite long; in contracted specimens they fall a little short of the an- 

 tennie. 



Proboscis and jaws not seen. 



On the specimen tigured, which was otherwise in good condition, the 

 posterior superior tentacular cirri were both lost. On another s})ecimen, 

 much injured, this cirrus remained, and was found to be very long, 

 reaching back to the thirty-fourth segment, being nearly three times as 

 long as the anterior superior cirrus, which reaches to tlie twelfth seg- 

 ment ; the inferior cirri are nuich shorter. 



Buccal segment produced forward along its anterior margin, encroacli- 

 ing a little on the head; its length, in alcoholic specimens, is about 

 that of the next segment. 



