POLYCHAETOUS ANNELIDS COLLECTED BY THE 

 UNITED STATES FISHERIES STEAMER " ALBATROSS " 

 DURING THE PHILIPPINE EXPEDITION OF 1907-1909. 



. By Ruth A. Hoagland, 



Assistant in Zoology, Vassar College, Poughkeepsie, Neiv York. 



INTRODUCTION. 



The collection of Annelids described here is extensive but in many 

 cases poorly preserved. Specimens too mutilated for identification 

 are not mentioned in the following list; also, vials containing only 

 tubes have in some cases been discarded. In descriptions of new 

 species I have endeavored to include drawings in sufficient numbers 

 to supplement the verbal descriptions, thus, I believe, eliminating 

 the errors in identification which often result from such descriptions. 

 I am indebted to Prof. A. L. Treadwell, of Vassar College, for the 

 use of the collection. 



The following families are represented : 



Syllidae. 



Hesionidae. 



Aphroditidae. 



Nereidae. 



Nephthydidae. 



Amphinomidae. 



Leodicidae. 



Glyceridae. 



Spionidae. 



Cirratulidae. 



Terebellidae. 



Ampharetidae. 



Capitellidae. 



Opheliidae. 



Chlorhaemidae. 



Sabellidae. 



Hermellidae. 



DESCRIPTION OF SPECIES. 



Family SYLLIDAE. 

 Genus MYRIANIDA Milne-Edwards. 



MYRIANIDA TERESETA, new species. 



Plate 46, figs. 1-3. 



Type. — Cat. No. 18942, U.S.N.M. A sexually mature female of 

 114 somites (incomplete). Length, 17 mm. ; greatest width, not quite 



2 mm. 



cm 



