AMBLYOSYLLIS LINEATA. 225 



1. Amblyosyllis lineata, Grube, 1864. Plate XL VIII, fig. 4; Plate LXXI, fig. 1 — foot; 



Plate LXXIX, fig. 20— bristle. 



Specific Characters. — Head small, transversely ovoid, with a median and two lateral 

 tentacles of considerable length (indistinctly articulated, De St. Joseph). Palpi small, 

 appearing as two bosses on the ventral surface. Eyes four, red, the anterior slightly 

 the wider, and the pairs on each side almost connate. Behind the eyes are the ciliated 

 nuchal wings, which have a sepia-brown tint with a pale border. Body about half an 

 inch in length ; segments sixteen, tapered in front and again posteriorly to a less degree, 

 and ending in a bluntly-conical segment bearing two long cirri. General colour purplish 

 brown, with definite yellowish patches. Feet thirteen pairs. Dorsally is the long 

 slightly crenate cirrus. Near the base is a tuft of slender hair-like (swimming) bristles 

 in certain females. Setigerous lobe stout with a conical papilla above the spine. Bristles 

 a dense group, each bristle dilated and bevelled at the tip. Terminal piece longest in 

 the superior bristles, tapering to a hook distally, and on the edge beneath is- a secondary 

 process, so that it is bifid. Ventral cirrus of a curved lanceolate form, and it scarcely 

 reaches the tip of the setigerous region. 



Synonyms. 



1863. Pterosyllis formosa, Claparede. Beobacht., p. 46, pi. xiii, f. 31 — 34. 



1864. „ „ Ehlers. Borstenw., p. 222. 



„ Nicotia lineolata, A. Costa. Ann. del Mus. Zoologico, p. 160, Taf. hi. 



,, Amblyosyllis lineata, Grube (?). Insel Lussin, p. 84. 



1865. Gattiola spectabilis, Johnston. Oat. Brit. Mus., p. 195, pi. xviA, f. 1—7, and p. 342. 

 „ Pterosyllis formosa, De Quatrefages. Annel., II, p. 17. 



1867. Gattiola spectabilis, Parfitt. Trans. Devon. Assoc, ii, pt. 1, p. 236. 



1874. ,, plectoryncha, Marenzeller. Op. cit., p. 47, pi. v, f. 3. 



„ Stephanosyllis omata, Verrill. Proc. Americ. Assoc. So., 1873, p. 378, pi. iv, f. 1. 



1875. Pterosyllis lineolata, Marion and Bobretzky. Ann. Sc. Nat., 6 e ser, t. ii, p. 43, pi. iv, f. 13, 



and pi. v, f. 13. 

 1879. Amblyosyllis madeirensis, Langerhans. Zeitschr. f. w. Zool., t. xxxii, p. 561, pi. xxxii, f. 19. 

 1885. „ lineolata, Cams. Fauna Medit., p. 231. 



1887. Pterosyllis (Gattiola) spectabilis, De St. Joseph. Ann. Sc. Nat., 7 e ser, i, p. 187, pi. ix, 



f. 64—67. 



1904. Amblosyllis spectabilis, Allen. Journ. M. B. A., N.s., vol. vii, p. 220. 



1905. „ lineata, Graeffe. Arbeit. Zool. Stat. Triest, xv, p. 324. 



Habitat. — Under stones near low water-mark, in the creek to the south of the 

 harbour (behind the first small promontory) at Lochmaddy, North Uist, and again near 

 the foot of the Lee hills, under a stone, near low water-mark. Off Fermain Bay, Guernsey, 

 in 10 fathoms ; and under stones in tidal pools, Herm. Off Plymouth, where it occurs in 

 considerable numbers in sponges (Miss Florence Buchanan, Garstang, and Allen). 



Naples; Marseilles (Marion and Bobretzky). Eastern shores of America (Verrill) ?. 



Head small, transversely ovoid, with three long tentacles — a median and two lateral 



.all of considerable length (forty to fifty articulations, De St. Joseph). The palpi are 



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