40 EUMENIA CRASSA. 



1844. Eumenia crassa, (Ersted. Eegion. Mar. ; p. 78. 



1851. „ „ Grube. Fam. Anuel., p. 71 . 



1857. „ „ Bars. Nyt Mag. f. Naturvid., vii, p. 391. 



„ ,, ,, idem. Ibid., xii, p. 303. 



1859. „ ,, Danielssen. Reise, 1858, Norske Vidensk. Skrift., iv, p. 120. 



1861. „ „ Sars. Nyt Mag. f. Naturvid., xii, p. 302. 



1863. „ „ idem. Indberet. acad. Kongl. Fred. Universit., p. 51. 



1865. „ „ Johnston. Cat. Worms Brit. Mus., p. 221. 



„ Polyphysia crassa, De Quatrefages. Annel., t. ii, p. 268. 



1867. Eumenia crassa, Wiren. Kongl. svenska Vet. Akad. Handl., Bd. xxii, text, and Taf. i, 



figs. 4—11; Taf. ii, figs. 12 and 13; Taf. iii, figs. 5, 12, 16, 17; 

 Taf. iv, figs. 2—5 ; Taf. 5, fig. 7, 8. 



„ „ ,, Malmgren. Annul. Polych., p. 76 (sep. copy). 



1873. „ „ Sars. Bidrag Christ. Fauna, p. 45. 



„ ,, „ idem. Nyt Mag. f. Naturvid., xix, p. 245. 



1874. „ „ Mcintosh. Ann. Nat. Hist., ser. 4, vol. xiv, p. 201. 



1875. „ „ idem. Invert, and Fishes St. Andrews, p. 125. 

 1879. „ „ Tauber. Annul. Danica, p. 109. 



„ „ „ Theel. Kongl. svenska Yet. Akad. HandL, Bd. xvi, p. 49. 



1883. „ „ Levinsen. Vidensk. Middel. Foren. Kjobenh., p. 131. 



„ Wiren. Chastop, " Vega ;; Exped., p. 406. 



1887. ,, ,, idem. Kongl. svenska Vet. Akad. HandL, Bd. xxii, ubique (Anat.), pis. i, iii, 



iv and v. 



1888. „ „ Cunningham and Bamage. Trans. Koy. Soc. Edinb., vol. xxxiii, p. 655, pi. xlii, 



fig. 18 a. 

 1894. „ „ Bidenkap. Christ. Vid.-Selsk. ForhandL, p. 109. 



1897. „ „ Michaelsen. Polych. deutsch. Meere, p. 138. 



Habitat. — Not uncommon in the stomachs of haddocks, St. Andrews (B. Mcintosh) ; 

 Firth of Forth (Cunningham and Eamage). Extends to England (Staples, Brit. Mus.). 



Abroad it occurs in Norway and Sweden, as well as in Greenland and Spitzbergen— 

 generally on muddy ground; Atlantic Coast, United States of America (Verrill). 



Bead conical with two lateral processes or tentacles. 



Body thickest anteriorly. First six bristled segments provided with branchiae— each 

 in the form of a thick cluster of filaments springing from a central stem, and situated in 

 front of the foot. Anal segment devoid of processes, and in the spirit-preparations a 

 prolapse of the region as a crenate trumpet-shaped projection occasionally occurs. 



The anterior foot (Plate XCV, fig. 13) consists of a lanceolate lamella dorsally and 

 ventrally and a fan of bristles in each (Plate CHI, figs. 5 and 5 a), and the feet extend 

 almost from end to end. 



The twentieth foot (Plate XCV, fig. 13 a) differs from the anterior chiefly in the 

 greater proportional length and the diminished number of the bristles. 



Dr. Johnston 1 (1865) described a specimen procured by Lieut. Thomas at the Staples. 

 He thought it ought to be associated with the Opheliidge rather than with the Arenicolidse 

 and Ariciidaa as (Ersted suggested. 



i ( 



Cat. Worms Brit. Mus./ p. 221. 



