LEIOCHONE (CLYMENE) EBIENSIS. 313 



continued backward to the edge of the funnel. Bristled segments twenty-four to twenty 

 nine, besides five devoid of bristles posteriorly. Anal funnel little dilated, with a smooth 

 rim and a prominent anal cone in the centre. 



Both bristles and hooks occur on the first segment, but the hooks are less elaborately 

 formed and are devoid of gular bristles. The typical bristles are in two groups, have 

 stout shafts, finely-tapered smooth tips and distinct wings in the one case, and in the other 

 shorter and more slender forms with hair-like tips. The hooks are comparatively straight, 

 have a short and sharp main fang, and a broad but not elevated crown with six teeth 

 behind the main fang, which has the gular bristles applied to its lower edge. The 

 shoulder is slightly developed. Colour pale yellow, segments two to seven having 

 anteriorly a white band, and behind it a faint reddish belt, which on the seventh is deep 

 red. The ventral surface of the eighth segment has a white cushion (De St. Joseph). 



Tube free, friable, composed of sand-grains and minute fragments of shells attached 

 to a central lining of secretion. 



Synonyms. 

 1844. Clymene ebiensis, Audouin and Edwards. Kegne Amm., Disciples' ed., Ann el. p. 47, pl.xxii, fig. 4. 

 1848. „ „ CErsted. Region. Marin, p. 79. 



1851. „ „ Grube. Fam. Annel., pp. 77 and 137. 



1865. Leiocephalus ebiensis, De Quatrefages. Annel., t. ii, p. 243. 



1868. Clymene ebiensis, Grube. Abh. Schles. (resell, f. vat. Cult., 1867, p. 53. 



1869. „ „ Mcintosh. Rep. Brit. Assoc, for 1868, p. 338. 



„ „ „ idem. Trans. Roy. Soc. Edinb., vol. xxv, p. 422, pi. xvi, fig. 12. 



1892. „ „ idem. Ann. Nat. Hist.,, ser. 6, vol. x, p. 103, pi. viii, figs. 1 — 4. 



1894. ? Leiochone clypeata, De St. Joseph. Ann. Sc. nat., 7 e ser., t. xvii, p. 139, pi. vi, figs. 167 — 175. 



1896. ? Clymene lumbricoides, Benham., Camb. Nat. Hist., vol. ii, p. 333 

 1913. „ ebiensis, Mcintosh. Ann. Nat. Hist., ser. 8, vol. xi, p. 96. 



Habitat. — Dredged by Dr. Gwyn Jeffreys in 75 to 80 fathoms in the Outer Haaf, 

 Skerries, Shetland, in 1867; in 305 fathoms, Station No. 2 in the Atlantic, and again at 

 Station No. 8 by the ' Porcupine,' 1870; coast of Durham, (Prof. G. S. Brady, 1866); 

 between tide-marks, Jersey (Hornell). 



Abroad it occurs on the island of Ebiens on the coast of Brittany in France (Audouin 

 and Milne Edwards) and other parts of the French coast, e. g. St. Malo and Dinard (De 

 St. Joseph). 



The anterior end (Plate C, fig. 1 8) forms a smoothly-rounded and somewhat pyramidal 

 or clavate mass, with a pointed frontal process — the prostomium, peristomium, and 

 perhaps the first (unarmed) segments entering into its composition, the two former being 

 separated by a ring from the latter. Dorsally a narrow median keel commences at the 

 ring just mentioned and passes forward to the mid-frontal process. On each side of the 

 keel is a sharp vertical ridge or lamina, which accompanies it to the frontal process where 

 it ends, a front view presenting the ends of the ridges on each side of the frontal process. 

 A deep groove (probably the nuchal) separates them and debouches on each side of the 

 frontal process, and this arrangement recalls the condition in the cephalic plate of other 

 forms. In the fresh example a dense series of minute dark brown eyes is visible from the 

 dorsum on each side of the snout, but they disappear by passing under the pointed 



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