NEW EUPHROSYNE-SPECIES. 213 



NOTE XXX. 



NEW SPECIES OF THE GENUS 



EUPHROSYNE FROM THE SIBOGA-EXPEDITION, 



WITH A TABLE OF THE SPECIES HITHERTO 



KNOWN 



Dr. R. HORST. 



Since the publication of Ehlers' »Borstenwürraer" and 

 Baird's » Contributions towards a Monograph of the Am- 

 phinomacea" ^), our knowledge of this genus of Annelida 

 much increased, especially by Johnson's » Preliminary account 

 of the marine Annelids of the Pacific coast" ^) and »The 

 Polychaeta of the Puget Sound region" ^) and by Ehlers' 

 description of »Die Polychaeten des magellanischen und 

 chilenischen Strandes" *). The Siboga-expedition in the 

 Malay Archipelago also had the good luck to collect a 

 rather great number of Euphrosyne-specimens, of which 

 only a single one could be referred to a known species 

 (E. superba Marenz.), whereas for the remaining ones nine 

 new species must be established, which are summarily des- 

 cribed in the present note. Among these are some small, 

 interesting species {E. affinis, — hystrix^ — maculata, — 

 pilosa, — pelagica, — sibogae), which by the presence of 



1) Journal Linn. Soc, Zoology, Vol. X, 1870, p. 215. 



2) Proceed. California Acad, of Sciences, (3) Zool. Vol. 1, 1897, p. 153. 



3) Proceed. Boston Soc. Nat. Hist. Vol. XXIX, 1901, p. 381. 



4) Festschrift k. Gesellsch. d. Wissensch. Göttingen, 1901. 



]S^otes from the Leyden Museum, Vol. XXIII. 



