56- Prof. M'Intosli's Notes from the 



granules. They arise from a translucent basement-mem- 

 brane. They are often curved, but •svlietlicr this condition 

 has given rise to De Quatrefages's description of falcate 

 is a question. No other form of papilla is present, and 

 hence the surface dificrs from the figure and description 

 of Elilcrs in regard to H. simplex, which has clavate or 

 slightly glohular forms amongst the filiform. Much depends 

 on the state of the preparation, for a softened one might 

 assume the condition in Ehlers's figure. 



The anterior feet are moderately elongate, the dorsal cirrus 

 being above the base of the foot. The setigerous region is 

 bluntly rounded at the tip, Avhich is pierced by the spines, 

 and from the anterior border projects a long digit-like 

 papilla with a constriction at the base. The bristles are 

 placed symmetrically above and below the spine. They all 

 have the same structure, with pale translucent shafts, dilated 

 and split at the end for the insertion of the base of the 

 terminal piece, which is of moderate length with a thick 

 back piece and a thin edge minutely serrated, the whole being 

 finely tapered to a sharp jjoint. None are seen to be bevelled 

 in lateral view — apparently because they differ in this respect 

 from those of such as Nereis. The ventral cirrus is situated 

 at the base of the foot and is somewhat ovoid with a blunt 

 tip — its outline resembling that of the dorsal cirrus. 



The posterior feet differ from the anterior in so far as the 

 dorsal cirrus with its constricted base is now situated on the 

 foot, whilst Ihe ventral cirrus has moved outwards to the 

 middle of the foot, is much longer and more pointed. The 

 terminal anterior papilla is also somewhat longer. The bristles 

 do not materially differ : they show a gradation in each 

 bundle, those nearest the spine being more slender than those 

 dorsally and ventrally. 



This form has considerably longer feet than that shown by 

 Ehlers, and the ventral cirrus is longer and more pointed 

 posteriorly — in this respect agreeing with De Quatrefages's 

 description of his Hemipodus rose as. 



Glycera alba, H. R, 



This form (not to be distinguished from Glycera alba, H. 

 Ratlike) comes from a depth of 30 fathoms in the Japan 

 Sea. The papillae of the proboscis are lanceolate. 



A specimen of Glycera siphonostoma, G-7 inches in length, 

 was found by Captain St. John at low water, Takura, Japan, 



