ADDITIONS TO 



THE POLYCHAETOUS ANNELIDS COLLECTED BY 



THE UNITED STATES FISHERIES STEAMER 



"ALBATROSS," 1907-1910, INCLUDING 



ONE NEW GENUS AND THREE 



NEW SPECIES 



By A. L. TREADWELL 



Of the Department of Zoology, Vassar College 

 Poughkeepsie, New York 



INTRODUCTION 



Of the polychaetous annelids collected in the region of the Philip- 

 pine Islands by the United States Fisheries steamer Albatross in 

 1907 to 1909 the greater part were described by Treadwell (Bull. U. 

 S. Nat. Mus. vol. 1, pt. 8, 1920) and by Hoagland (Idem, vol. 1, pt. 

 9). Other material from this same collection was later sent me by 

 Dr. W. L. Schmitt, of the LTnited States National Museum. In the 

 following paper I have recorded some old species not represented in 

 the original lot, as well as descriptions of some new species. 



DESCRIPTIONS OF SPECIES 



Family POLYNOIDAE 

 Genus IPHIONE Savigny 



IPHIONE MURICATA Savigny 



Iphione muricata Savigny, Systeine des Annelides, 1820, p. 21, pi. 2, fig. 1. — 

 Geube, Annulata Semperiana, Mem. Akad. Imp. Sci. St. Petersbourg, vol. 25, 

 no. 8, 1878, pp. 21, 22. 



One specimen collected at Naw Waw, Formosa. 

 Family APHRODITIDAE 



Genus LAETMONICE Kinberg 



LAETMONICE NITIDA, new species 



Figures 1 to 5 



Two specimens collected at Station 5139 * are evidently closely 

 related to L. producta of Grube, 2 Mcintosh 3 described a number of 



1 Vicinity of Jolo, 6° 06' N., 121° 02' 30" E., Feb. 14, 1908, 20 fathoms. 



2 Monats. K. Akad, zu Berlin, 1877, p. 512. 



3 Mcintosh, W. C. : Report on the Annelida Polychaeta collected by H. M. S. Chal- 

 lenger during the years 1873, 1876. Report on the Scientific Results of the Voyage of 

 H. M. S. Challenger, vol. 12, 1885, pp. 39-50. 



2998 — 26 183 



