PHYLLODOCE PARETTI. 83 



between and in front of the eyes. The terminal tentacles are large and dull yellow. 

 Posterior border of the head entire. Tentacular cirri long, comparatively thick, 

 tapered at the tip and of the same yellowish colour as the tentacles. Body 6 — 10 inches 

 in length and 4 — 5 mm. in diameter, slightly tapered anteriorly and more distinctly 

 so posteriorly. Iridescent bluish, paler in some, with a shade of pink mesially. 

 Ventrally the same bluish iridescent colour prevails. Dorsal cirri of a rich deep green 

 with a border of yellow or greenish yellow. Posteriorly the body terminates in 

 two rather thick anal cirri of the shape and colour of the tentacular cirri. Foot 

 with foliaceous dorsal cirrus which is bluntly cordiform in front, nearly regularly 

 cordiform in the middle, and more or less lanceolate posteriorly. Setigerous region 

 a blunt cone, bifid at the tip, and having a single powerful spine and a fan of nearly 

 straight (the distal curve being slight) translucent bristles, the ends of the shafts 

 being bluntly clavate, so that the region is short and minutely spinous. The terminal 

 process is characteristically small and tapers to a fine point with a serrated 

 anterior edge. Ventral cirrus irregularly reniform or ovato-lanceolate in front, ovato- 

 lanceoktte in the middle of the body and more pointed (that is more distinctly 

 lanceolate) posteriorly. 



Synonyms. 



1828. Nereiphylle de Paretto, De Blainville, Diet. Sc. Nat., lvi, 476, et Atlas, pi. xiii, fig. 1. 



1829. Nereis Paretti, Delle Chiaje. Mem., iv, p. 195, Tav. lxiv, f. 3—5. ? 



1833. Phyllodoce Paretti, M. Edwards. Ann. Sc. Nat., xxix, p. 248. 



1834. „ „ Audouin et Edwards. Annel., p. 229. 



1840. „ Bathhii, Grube. Actin. Ech. u. Wiirm., p. 78. 



1841. „ Parettiana, Delle Chiaje. Discriz., iii, p. 98, et P. Paretti, v, p. 104, Tav. 166, f. 3. 

 1849. „ Paretti, M. Edwards. Reg. Anim. Illust., pi. xiii, f. 1. 



1851. „ Rathhii, Grube. Fam. Annel., pp. 55 and 129. 



1865. „ Paretti, De Quatrefages. Annel., ii, p. 130. 



1870. „ Pancerina, Claparede. Annel. Nap. Suppl., p. 92, pi. ix, fig. 1. 



1888. „ Paretti, De St. Joseph. Ann. Sc. Nat., 7 e ser., torn, v, p. 279. 



„ „ (Carobia) splendens, idem. Ibid., p. 278, pi. xi, fig. 138. (?) 



1904. „ Paretti, Allen. Journ. M.B.A., n. s., vol. vii, p. 224. 



1905. „ „ G-raeffe. Arbeit. Zool. Stat. Triest., xv, p. 325. 



1906. „ splendens, De St. Joseph. Ann. Sc. Nat., 9 e ser., t. iii. (?) 



Habitat. — Guernsey, between tide-marks (Ray Lankester) ; offshore in depth of 

 10—15 fathoms, Plymouth (E. J. Allen). 



Shores of France (Milne- Edwards, De Saint Joseph). Mediterranean (Delle Chiaje, 

 Grube, Claparede). 



Head rounded or ovoid, comparatively small, with two large black eyes surrounded 

 by a yellowish rim, and passing as a band from each to the posterior border of the region. 

 They look both dorsally and laterally. The terminal tentacles are large, fusiform, and with 

 a short slender tip. The upper pair are carried forward slightly sloping from each other. 

 A speck of dark pigment occurs behind the base of each. The ventral pair are usually 

 borne transversely or with the tips pointed downward. Their shape is similar to that 



