192 PSAMMOLYCE MALAY ANA. 



ridges, whereas these are very faintly developed in the 

 slender inferior bristles. 



Though undoubtly closely allied to Ps. fijiensis, the 

 Siboga-specimens could not be identified with it on account 

 of the swollen tip of the tentacle and the tentacular cirri, 

 of the whip-shaped terminal appendix of the dorsal cirrus 

 of the third segment and the different structure of the 

 bristles, the shaft of which in some of them is furnished 

 with prominent, transverse ridges. 



L e y d e n Museum, September 1913. 



Notes from the Leyden Miuseum, Vol. XXXV. 



