ANNELIDA POLYCHAETA. 



181 



cirri short, the longest of the ventral pair not so long as 

 the palpi; the longest of the dorsal pair longer than the 

 palpi, reversed they reach to the 4th segment. In the an- 

 terior feet the lip of the dorsal setigerous lobe short , rounded ; 

 lips of the ventral lobe somewhat shorter, trapezoidal. Supe- 

 rior ligule conical, larger and a little longer than the dor- 

 sal lobe, inferior ligule less developed and not projecting 

 beyond the tip of the ventral lobe. Dorsal cirrus long 

 and slender, extending far beyond the tip of the superior 

 ligule , ventral cirrus short , somewhat longer than the 

 half of the inferior ligule. In the posterior segments the 

 superior ligule is enlarged and presents a more acute shape; 

 the lip of the dorsal lobe is more conical, about of the 

 same appearance as the inferior ligule. The ventral lobe 

 presents a narrow lamella. The ventral cirrus , about of the 

 same length as the inferior ligule, bears near its base on 

 the dorsal side two obtuse, tongue-shaped lamellae , on the 

 ventral side a narrow rounded lamella. The inferior fascicle 

 of the ventral lobe contains , besides the heterogomph fal- 

 cate bristles , a single heterogomph setose one. 



Paragnathi of the proboscis : Maxillary region , I. two teeth 

 situated behind each other; II. small, semilunar group; 



IV. large curved patch; III. transverse group ; basal region , 



V. triangular group of 3 teeth ; VI. a transverse , round 

 ridge ; VII. and VIII. a belt of two rows of conical teeth , 

 alternating with each other ; on the ventral side the rows 

 are separated from each other , on the dorsal side they unite 

 in a single series. 



The bottle contained only a single incomplete specimen , 

 wanting the posterior body-region. It is a female with 

 completely developed eggs, presenting however only faint 

 marks of epitocous transformation. The eyes are not en- 

 larged; the feet of the posterior segments present but some 

 faint lamellar processes, and bristles with knife-shaped ter- 

 minal pieces could not be observed. 



Already several species of the PmWm's-group are known , 

 which have in group V. of the proboscis a triangular 



Notes from the Leyden Museum , Vol. XJL. 



