DR. W. BAIUU ON NEW ANNELIDA AND GEl'lI YJiEANS. 



95 



the chief differences being ia the ventral cirrus or branchial 

 process, the more decidedly serrated setae, and the habitat. 

 Length about 4 inches. 



Hah. Loto, coast of Patagonia, Dr. Cunningham. 



3. ISTephthys ltjtrea, JBaird. 



This species is considerably smaller than the preceding, but 

 resembles it in most respects. The seta3 of the feet are long ; 

 but instead of being serrated on one edge, they are divided 

 across in numerous small joints or articulations. 



In length it is only 2 inches. 



Sab. Otter islands, coast of Patagonia, Dr. Cunningham. 



4. Cltmene grossa, Baird. 



Body of a straw-yellow colour, much wrinkled on the surface, 

 and thick. Head-lobe of considerable size and much wrinkled. 

 Cephalic plate large and crenate on the upper edge ; crenations 

 about 12 in number, each crenation again having two slight cre- 

 nations on the summit. First segment of body without seti- 

 gerous feet. Three following segments with a fascicle of setse only. 

 The middle ones with a fascicle of setse, and a lobe possessing nu- 

 merous very short setse on it. 



Unfortunately the two Museum specimens are imperfect at the 

 inferior portion. 



Hah. Straits of Magellan, Dr. Cunningham. 



5. Clymene insignis, Baird. 



Body elongate ; thickest in the middle, which exhibits a sort of 

 sheath or tube in which the worm lives. Cephalic lamina very 

 small, entire. Posterior extremity obliquely truncate, with no 

 infundib aliform appendage. Segments of body very indistinct ; 

 one or two, of the anterior portion, without setse ; the other 

 segments possess two rami. The anterior half of the body, 

 exhibiting these setse, is very large, and the setae are very long 

 and filiform. Posterior portion of body has the fasciculi of setse 

 small. 



Hah. ? Taken during the Congo Expedition. 



6. Siphonostoma ANTARCTicuM, Baird. 



Setse surrounding the head numerous, very short and fine. 

 Branchise short, numerous. Head withdrawn. Body covered 

 with an enveloping substance like that of most of the known 

 species. Setse of the inferior ramus of feet single, crooked or 



