Proceedings of the American Academy of Arts and Sciences. 

 Vol. XXXVII. No. 21. — April, 1902. 



CONTRIBUTIONS FROM THE ZOOLOGICAL LABORATORY OF THE 

 MUSEUM OF COMPARATIVE ZOOLOGY AT HARVARD COLLEGE, 

 UNDER THE DIRECTION OF E. L. MARK.— No. 129. 



CERTAIN SENSE ORGANS OF THE PROBOSCIS OF THE 

 POLYCHAETOUS ANNELID RHTNCHOBOLUS . 

 DIBRANC HIATUS. 



By Adele Oppenheimer. 



With Six Plates. 



MARINE BIOLOGICAL LABORATORY. 



Received ry<^^-^ ■ //.■/. f..^.!^.., 



Accession No. ^^ /.^'P ■. 



Given by i^<yrx^-...U<^<-'^^l-t^.../r^ 



Place, 



*t*Ko book OP pamphlet is to be removed from the Iiab- 

 OPQtOPy luilhout the pepmission of the Trustees. 



