BY WILLIAM A. HASWELL, M.A., B.SC, 739' 



either side of this, just below and in front of the eye, is a broad 

 lobe, which seems to represent a rndimentaiy palp. At the antero- 

 external angle of the head is a short, horn-like tentacle. The eyes 

 are just behind these tentacles, placed close to the lateral border of 

 the head ; their breadth is about a fifth of that of the head. 



The first pair of parapodia are very well developed, and are 

 neai-ly a fourth of the breadth of the head ; they are furnished 

 with about twenty setfe, all of which, except two or three on the 

 dorsal aspect, are compound. Like the following segments, the 

 first has a very long, ringed dorsal cirrus, which is very much 

 longer than the breadth of the body. In the following segments 

 the parapodia are very large and provided with two bundles of 

 setse, those of the dorsal fasciculus numerous, simple, very slender, 

 and longer than the breadth of the segments ; those of the ventral 

 fasciculus compound. 



The cavity of the body is full of bright i-ed spermatozoa. The 

 alimentary canal presents no trace of its ordinary divisions, having 

 the form of a simple tube. 



Syllis Kinbergiana. N. sp. 



(Plate LI., Figs. 1-3.) 



The colour of this species is light yellow, with greenish trans- 

 verse lines. On each segment is a pair of veiy light yellow or 

 greenish-white dots, which are most distinct in the middle and 

 posterior regions of the body. There is a patch of white on the 

 dorsal surface just behind the head. The head is light red, the 

 eyes crimson. The ordinary length is 2^ inches; the breath ^oth 

 of an inch. The head is short, its breadth greater than its length, 

 bilobed, the two halves rounded on the dorsal aspect. The palpi 

 are triangulai-, rather pointed, twice the length of the head, 

 separated from one another by a narrow interval. The median 

 tentacle is twice the length of the palpi, a little longer than the 

 lateral tentacles. The dorsal cirri are usually slightly longer than 

 the breadth of the segment. Their joints are very indistinct and the 

 number very irregular ; usually there are about a dozen joints in 



