EULALIA TRIPUNCTATA. 63 



out that the dark line shown by Grube and Claparede behind each eye is not constant, 

 and it was not present in the small example from the Channel Islands (1868), and 

 that the ventral leaf of the second pair of tentacular cirri has a spine. 



De St. Joseph, at Dinard, met with comparatively large examples — viz. 5 centimetres 

 in length, 6 mm. across the dorsal cirri, and with 116 segments. He found the parasitic 

 crustacean, Herpyllobius arcticus (Steenstrup) fixed to the side of one specimen. 



5. Eulalia tripunctata, Mcintosh, 1874. Plate XLIV, fig. 3; Plate LVIII, fig. 23— head; 

 Plate LXVII, fig. 13— foot; Plate LXXVII, fig. 4— bristle. 



Specific Characters. — Head bluntly conical, flattened and pale, with four rather 

 short tentacles at the tip, and a median between the well-marked black eyes, which are 

 posterior in position. The first pair of tentacular cirri occurs on the buccal segment, the 

 second segment bears two pairs. The long posterior tentacular cirri are only once and a 

 half the breadth of the body. . The latter is about two and a half inches long, narrow, 

 gently dilating behind the head, and again diminishing gradually towards the attenuated 

 tail, which has two short, baton-like or fusiform cirri, flattened dorsally and ventrally. 

 A slender papilla occurs in the centre between them. Of a pale yellow colour, with 

 three rows of black spots on the dorsum, the lateral commencing on the first segment and 

 behind the attachment of the foot, and the central on the intermediate fold at the segment- 

 junction, so that they form a triangle. The ventral surface is pale yellow, with a faint 

 lateral row of dark grains at each side in the middle of the body. The dorsal cirrus is 

 ovato-lanceolate — probably nearly lanceolate in life. The setigerous lobe is compara- 

 tively short, indistinctly bilabiate (De St. Joseph), with short pale bristles, the shafts of 

 which in lateral view are bevelled at the enlarged end. The terminal blade is short, and 

 rapidly tapers to a point. The serrations on the edge are very minute. The ventral 

 cirrus is ovato-lanceolate, the tip extending fully as far as the setigerous process. 



Synonyms. 



1874. Eulalia tripunctata, Mcintosh. Ann. Nat. Hist., ser. 4, vol. xiv, p. 197. 



1875. „ „ idem. Invert, and Fishes, St. Andrews, p. 120. 



1888. „ Claparedii, De St. Joseph. Ann Sc. Nat,, 7 e ser., t. v, p. 285, pi. xi, f. 144 — 148. 

 1904. „ „ Allen. Journ. M. B. A., n.s., vol. vii, p. 223. 



Habitat. — From the debris of the deep-sea fishing-boats, St. Andrews, May, 1868 

 (R.M.) ; between tide marks, Herm ; dredged amongst dead shells off St. Peter Port, 

 Guernsey. 



Plymouth (Allen). Shores of France (De St. Joseph). 



Head, — Pale throughout, flattened, bluntly conical, with four rather short tentacles 

 at the tip, and a median between the well-marked black eyes, which are situated 

 posteriorly. There are three tentacular cirri, the posterior the longest, yet the latter are 

 only once and a half as broad as the body. 



Body about two and a half inches in length, much elongated proportionally, narrow, 



