POLTMNIA NESIDENSIS. 127 



1871. Terebella In tea et Danielsseni, idem. Jahresber. Schles. Gesell., p. 50. 



1873. „ Danielsseni, Kupffer. Jalrresb. Komm. dent., p. 152. 



1874. Polymnia „ Malm. Annul. Goteb., p. 97. 



1875. Terebella lutea, Panceri. Atti Soc. Ital. Sc. Nat., vol. xviii, p. 230. 

 1879. „ Danielsseni, Tauber. Annul. Danica, p. 131. 



1883. Amphitrite Danielseni, Levinsen. Vidensk. Meddel., p. 175. 



1884. Polymnia nesidensis, Marenzeller. Sitzb. K. Akad. Wissensch., p. 51, Taf. i, fig. 5 (sep. abdr.). 



1885. „ „ Cams. Fauna Medit., i, p. 265. 



„ Terebella (Polhymnia) Danielsseni, Wiren. Kongl. Sv. Yet. Akad. Hand]., Bd. xxi, p. 18, etc. 



1887. Polymnia nesidensis, Meyer. Mitth. Zool. Stat. Neap., t. vii, pp. 634 and 636. 



1888. Terebella Danielsseni, Cunningham and Ramage. Trans. Roy. Soc. Edin., vol. xxxiii, p. 663, 



pi. xliii, fig. 25. 



1893. Polymnia nesidensis, Lo Bianco. Atti R. Accad. Sc. Nap., vol. v, No. 11, p. 56. 



1894. „ „ Bidenkap. Forhandl. Vidensk.-selsk. Christ., No. 10, p. 129. 



De St. Joseph. Ann. Sc. nat., 7 e ser., t. xvii, p. 225, pi. x, figs. 256—258. 



1896. Terebella Danielsseni, Appellor*. Berg. Mus. Aarb., xiii, p. 12. 



1897. Polymnia nesidensis, Michaelsen. Polych. deutsch. Meere., p. 170. 



1903. „ „ Moore. Proc. Acad. Nat. Sc. Philad., p. 475. 



1904. „ „ Journ. M. B. A., vol. vii, p. 229. 



1906. „ „ De St. Joseph. Ann. Sc. nat., 9 e ser., t. iii, p. 238. 



1909. „ „ Fauvel. Bull. Inst. Ocean., No. 142, p. 29. 



„ „ „ Lo Bianco. Mitt. Zool. St. Neap., Bd. xix, p. 584. 



„ „ „ Fauvel. Ann. Sc. nat., 9 e ser., t. x, p. 209. 



1910. „ „ Elwes. Journ. M. B. A., vol. ix, p. 63. 



1912. „ „ Crawshay. Ibid., vol. ix, p. 343. 



„ Terebella Danielsseni, Wollebaek. Skrift. Selsk. Krist., Bd. ii, No. 18, p. 97, pi. xxix, figs. 1 — 6. 



1913. Polymnia nesidensis, Ehlers. Deut. Siidpol. Exped., p. 560. 



1914. „ „ Southern. Proc. Roy. Irish Aca.d., vol. xxxi, No. 47, p. 124. 



1915. „ „ Mcintosh. Ann. Nat. Hist., ser. 8, vol. xv, p. 11. 

 „ „ „ Allen. Journ. M. B. A., vol. x, p. 634. 



1917. „ „ Rioja. Anel. Poliq. Cantab., p. 57. 



,, „ „ Hessle. Zool. Bidr. Uppsala, Bd. v, p. 175. 



Habitat. — Dredged in 110 fathoms 30 miles west of tlie Blasquet, S.W. Ireland, 

 1869 (J. Gr. J.). Not infrequently in Bressay Sound, in 8 — 10 fathoms amongst 

 tangle-roots; in 6—8 fathoms, West Voe of Scalloway (W. C. M.). Plymouth (Spence 

 Bate, B. Howe and Crawshay). Dredged amongst oysters, scallops and mussels in the 

 Great Roussel, Guernsey (W. CM.) Common in Laminarian roots, Torquay (Elwes) ; 

 coast of Durham (G. S. Brady). Blacksod Bay and other parts on "West Coast of 

 Ireland (Southern). A very attenuate fragment about 4 inches long amongst examples 

 of Notomastus latericeus from Plymouth (1908). Elsewhere it is found in Japan (Moore) ; 

 French coast (De St. Joseph). Extends to the Mediterranean and Adriatic (Delle 

 Chiaje, Grube, CJaparede, Marenzeller, Fauvel) as well as to Sweden and Finmark 

 (Malmgren) ; shores of the North Sea and Baltic (De Quatrefages, Grube, Marenzeller) ; 

 South Polar waters (Ehlers). 



The cephalic region has a less developed dorsal collar than in P. nebulosa, and 



