72 AMPHICTBIS GUNNERI. 



1911. Amphicteis Gunneri, Ditlevsen. Danmark Exped., p. 427. 



1912. „ .. Meyer. Inaug. Dissert. Kiel., p. 19. 



Wollebeek. Skrift. Yid.-selsk. Krist., No. 18, p. 55, pi. viii, figs. 1—11. 



1914. .. .. Mcintosh. Ann. Nat. Hist., ser. 8, vol. xiii, p. 98. 



Fauvel. Campag. Sc. Monaco, Fasc. xlvi, p. 281, pi. xxvi, fig. 26. 

 Ditlevsen. Polych. Annel. (Meddel. Gr^nl.), p. 721. 



1915. „ „ Allen. Journ. M. B. A., vol. x, p. 637. 



1917. „ ' „ Hessle. Zool. Bidrag, Uppsala, p. 116, Taf. i, fig. 9. 



Habitat.-— Stomach of the haddock, St. Andrews Bay (B. M.) Dredged by Dr. 

 Gwyn Jeffreys off the Hebrides, 1866, and in 80 — 100 fathoms in St. Magnus Bay, 

 Shetland; 90-125 fathoms, 30—50 miles West of Valentia, Ireland (J. G. J.) ; "Knight 

 Errant," Stat. 8, 640 fathoms (very large). Plymouth (Spence Bate and Rowe, Allen); 

 S.W. Ireland, log. 19, 75 fathoms, 1885 (A. C. H.) ; Kenmare, S.W. Ireland, 1886; 

 S.W. Ireland, log. 55, 1866, 23—38 fathoms (R. I. A.) ; Bay of Galway (E. P. 

 Wright). 



Abroad it has been found by the " Challenger " in 2750 fathoms in the middle of the 

 Atlantic ; Barentz Sea (Mcintosh) ; Naples (Claparede) ; Greenland (Grube) ; Norway 

 (Sars) ; Spitzbergen, Finmark (Norman). In 220 fathoms between Anticosti and the 

 south shore, Canada (Dr. Whiteaves) ; Kerguelen (Ehlers). New England, U.S.A. 

 (Verrill) and Atlantic Coast ; Kara Sea (Levinsen) ; Arctic Sea (Marenzeller) ; Monaco 

 (Fauvel) ; West Indies (Augener). 



The cephalic region (Plate CXVIII, fig. 7) is somewhat shield-shaped dorsally, with 

 a ridge running forward on each side anteriorly and a median groove. Each ridge 

 diverges a little and projects in front. A prominent fillet of the buccal segment bounds 

 them laterally, and converging to a median dimple guards them posteriorly as two 

 oblique ridges, whilst in front of these a less prominent V-shaped fillet lies immediately 

 behind the ridge marking the nuchal organs. On each side, at the commencement of the 

 posterior slope, is a minute eye — indistinct in most spirit preparations. A dimple in 

 the fillet opposite the eye-speck increases its range posteriorly, and represents the nuchal 

 organ with pigment-specks in front. The buccal segment has an irregular border 

 anteriorly, since, besides the two lateral fillets at the cephalic plate, a narrow rim passes 

 in front of the mouth and a broader behind it, the margin of the lower lip being marked by 

 five crenations, the three median and their four grooves being most distinct. Projecting 

 from the mouth are the buccal tentacles, which are smooth. The second segment is 

 narrower than the foregoing, and has a nearly straight anterior margin dorsally, whilst 

 ventrally it is sinuous, having a forward curve in the middle, then a concavity, whilst the 

 lateral border again slightly curves forward. The region containing the foregoing parts 

 forms a blunt cone differentiated from the succeeding, which is wider, though the 

 maximum transverse diameter is four or five segments behind. 



The branchiae are rather massive subulate organs springing from the third and fourth 

 segments and the anterior edge of the fifth. Each has a short basal region, from which 

 it readily separates, and a tapering distal part ending in a filiform tip. Two are anterior 

 and two posterior. In the smaller examples variation in the origin of the stems exists, 

 the outer anterior being sometimes nearly in a line with the origin of the posterior pair 



