LEODICE LITA. 241 



the peristomium, or partly covered by the latter. There is a distinct short 

 ceratophore, but otherwise the tentacles seem to be wholly unjointed, smooth. 

 All are broken off distally. 



The peristomium in length about equals the succeeding three somites. 

 Dorsally the anterior margin bulges forward convexly at the middle. The 

 surface is finely longitudinally wrinkled. The anterior margin on each side is 

 notched, a furrow extending from each notch with a branch extending caudo- 

 ventrad and one strictly ventrad, the border elevated in front of the latter. 

 The ventral portion or lower lip is wholly smooth, with its anterior margin deeply 

 concave and entire. 



The second somite is exceedingly short. It is distinct not only above and 

 below, as usual, but also laterally, where it extends forward in a small triangular 

 area. The cirri are smooth, subulate. They extend forward nearly to the 

 anterior margin of the prostomium. 



The somites from the third caudad bear parapodia. They are regular and 

 undivided. They are very short, in the widest part of the body (near somite 

 XV) being nearly sixteen times wider than long. Dorsally the anterior somites 

 are strongly arched, the body here being deepest, while in the anterior portion 

 of the branchial region they are depressed, again becoming more convex farther 

 caudad. There is no trace of a median longitudinal furrow in the anterior 

 somites, but in the branchial region one appears, at first wide and shallow and 

 then sharply and narrowly impressed in the posterior sexual region. The somites 

 from the second caudad to the midbranchial region are crossed by numerous 

 longitudinal sulci, these disappearing from the middorsal region on the more 

 posterior ones. Ventrally the somites are but weakly convex; there is the usual 

 neural furrow which is wider and shallow anteriorly, in the branchial region 

 becoming narrower and deeper like the corresponding dorsal furrow and fading 

 out in the caudal region. Pygidium small; anus subdorsal. Anal cirri missing 

 from type. 



On the anterior somites the parapodia are prominent, distally rounded 

 processes; but they soon become reduced and but slightly elevated. The 

 notocirri arise high on the sides of the somites above the fascicles of setae. 

 Anteriorly they are proximally stout, narrowing distad, and rather long, extend- 

 ing beyond the setae; caudad they become shorter and more slender and 

 before the end of the branchial series is reached, they are reduced to pale, subu- 

 late processes minute in comparison with the branchiae; caudad of the branchial 

 series they continue to the end as unusually fine, short filaments. The first 



