28 THE ANNELIDA POLYCHAETA. 



EURYTHOE COMPLANATA (Pallas). 



Plate 14, fig. 3-8 



Aphrodite complanata P;Vllas, Misc. zool., 1766, p. 109, pi. 8, fig. 1926. 



Pleione complanata Savigny, Descript. Egypte. Hist, nat., 1809 [= 1822], 1, pt. 3, p. 62. 



Pleione alcyonia S.wigny, Descript. Egypte. Hist, nat., 1809 |= 1822], 1, pt. 3, p. 62, pi. 2, fig. 3. 



Eurythoe pacifica Kinberg, Ofvers. K. vet. akad. Forh., 1857, 14, p. 14; Grube, Novara Annelid., 1867, 



p. 8; Monatsb. K. preuss. akad. wiss. Berlin, 1877, p. 509; Annulata Semperiana, 1878, p. 6; 



McIntosh, Challenger Annelida, 1885, p. 27; Malaquin & Dchobne, Rev. Suisse zool., 1907, 15, 



p. 357; Kinberg, Fregatt. Eugenics Resa. Zool. Annulater, 1910, pi. 12, f. 11. 

 Eurythoe kamchamecha Kinberg, Ofvers. K. vet. akad. Forh., 1857, 14, p. 14; Ehlers, Zool. jahrb. Syst. 



1905, 22, 3, p. 281; Kinberg, Fregatt. Eugenics Resa. Zool. Annulater, 1910, pi. 12, f. 13. 

 Eurylhroe corallitui Kinberg, Ofvers. K. vet. akad. Forh., 1857, 14, p. 14. 

 Eurythoe complanata Langerhans, Nova acta Acad. Caesareae Leop. Carol., 1881, 42, p. 108. Ehlers, 



Mem. M. C. Z., 1887, 15, p. 29; Nach. K. gesellsch. wiss. Gottingen, Math. phys. klasse, 1897, p. 159; 



Festsch. K. gesellsch. Gottingen, 1901, p. 34; Treadwell, Bull. U. S. fish comm., 1901, 20, pt. 2, 



p. 194; Collin, Polych. Amboina etc., 1902, p. 99; Ehlers, Zool. jahrb. Syst., 1905, 22, 3, p. 281; 



Deutsch. tiefsee exped. Valdivia, 1908, 16, p. 38; Pott.'!, Polych. Indian Ocean, 1909, pt. 1, p. 307; 



HoRST, Siboga exped. Monog. 24a, 1912, p. 34, pi. 9, fig. 20; Augener, Fauna Siidw.-Austr. Polych., 



1, 1913, 4, 4, 6, p. 87. 

 Eurythoe pacifica var. levukaensis FiscHLi, Abh, Senck. naturf. gesellsch. Frankfurt-a-M., 1900, 25, p. 98. 

 Eurythoe alcyonia Gravier, Nouv. arch. Mus. hist, nat., 1901, ser. 4, 3, p. 248. 



Localities. Paumotu Archipelago: Rangii'oa. 23 September, 1899. 

 Three small specimens. 



Paumotu Archipelago: Fakarava. 13 October, 1899. Eighteen specimens 

 taken on the fringing reef, a few of these being immature. 



Paumotu Arcliipelago : Makemo. 21 October, 1899. Numerous young 

 specimens. 



Society Islands: Papeete. 9 November, 1899. Shore. Two small speci- 

 mens. 



Society Islands: Bora Bora. 17 November, 1899. Fringing reef. Numer- 

 ous young and partly grown specimens. 



Easter Island. 20, 21 December, 1904. Three specimens from the shore. 



Galapagos Islands: Chatham Island. 8, 9 January, 1905. Shore. Three 

 specimens. 



Eurythoe com-planata as here accepted has an almost cosmopolitan distri- 

 bution in the warmer latitudes. It is abundant and very widespread on the 

 coasts of the Indo-Pacific region from East Africa and the Red Sea to the Phil- 

 ippines, Hawaiian Islands and the Galapagos, without, however, having been 

 taken on the western American coast, and it occurs as well in the Atlantic in 

 the West Indies and on the African coast at the Canaries, etc. On the west 

 coast of America it is represented by a smaller but very closely related form, 

 E. paupera Grube {E. californica Johnson) which occurs in the littoral zone 



