AMPHINOMIDAE. 157 



NOTE XXIV. 



CONTRIBUTIONS TOWARDS THE KNOWLEDGE 

 OF THE ANNELIDA POLYCHAETA. 



BY 



Dr. R. HORST. 



AMPHINOMIDAE. 



(Plate 7 and 8). 



The publication of the » Reports on the Scientific Results 

 of the voyage of H. M. S. Challenger" undoubtedly will mark 

 an era in the history of our knowledge of the Invertebrate 

 Animals. Never before in any voyage such a bulk of well- 

 preserved material was collected and afterwards worked out 

 by so many distinguished investigators. In the first place 

 this can be stated about the Annelida P olychaeta, a 

 group usually quite neglected in preceding voyages. Though 

 in the last decennium the number of known species much 

 increased owing to the careful investigations of Grube ^) , 

 Marenzeller ^) , Hansen^), Langerhans '*) , Theel •"), a. o., by 

 the Report of Mr. MTntosh on the Challenger-Annelida, 



1) Anneliden-fauna der Philippinen, Mem. de I'Acad. Imp. des Sciences de 

 St. Petersbourg, Tom. XXV, 1878. 



2) Siid-Japanisclie Anneliden, Denkschr. K. Akad. d. Wissensch. Wien, 

 Bd. XLI, 1879. 



3) Annelides, recueillies par E van Beneden pendant son voyage au Bresil 

 etc. Me'm. Cour. et d. Sav. e'trang. Acad. Royale de Belgique. Tom. XLIV, 1882. 



4) Die Wurmfauna Madeira's, Z. W. Z. Bd. XXXII and XXXIII, 1879— SO. 



5) Annelides Polychctes de Nouvelle-Zemble, Kongl. Svenska Vetensk. Akad, 

 Handl. Bd. XVI, n° 3, 1879. 



JNTotes from the Leyden Museaza, Vol. VIU, 



