SOOLECOLEPIS FULIGINOSUS. 161 



tentacles more marked. Palpi (long tentacles) with dark bands and a cream-colonred 

 touch on prostomium, with black pigment on that region and the dorsum. Body 

 about three inches in length, smaller as a rule than S. vulgaris, with longer branchise 

 anteriorly, tapering a little in front, but much more posteriorly, where it ends in a 

 vent with eight flattened cirri. Segments numerous (90—160) and distinctly marked. 

 Black pigment at each side of the mouth. First foot carrying a larger branchia 

 than m 8. vulgaris, and the superior lamella is narrower and with a more acute 

 tip ; inferior lamella also narrower and more prominent. The bristles are similar, 

 but more delicate. At the tenth foot the branchia forms a long, richly ciliated process; 

 the upper lamella is hatchet-shaped, pointed and free superiorly ; inferior lamella capstan- 

 shaped. The long bristles at the upper edge of the dorsal tuft have very narrow wings. 

 The shorter forms dorsally and ventrally are. finely tapered. The branchia and superior 

 lamella diminish before the fiftieth foot, about which three or four winged hooks appear 

 in the ventral division. These hooks differ from those of 8. vulgaris in the larger angle 

 made by the main fang with the neck, in its not very acute tip, and in the presence of 

 only a single spine on the crown. The ventral hooks and accompanying short bristles 

 continue to the posterior end. 



Colour dull greenish, with black pigment anteriorly (Lo Bianco). 



Synonyms. 



1837. Spio loevicornis, Rathke. Fauna der Krjm, Mem. Sav. Etr. Acad. St. Petersb., t. in, p. 421, pi. 



viii, fig. 1 — 6. 

 1847. Aonis Wagneri, Frey and Leuckart. Beitrage wirbellosen Th., p. 156, pi. i, fig. 10. 

 1868. Spio fuliginosus, Claparede. Annel. Nap., p. 322, pi. xxiii, fig. 1. 



„ „ ,, Claparede and Mecznikow. Zeitschr. f. wiss. Zool., Bd. xix, p. 7 (sep. abdr.). 



1875. „ „ Marion and Bobretzky. Ann. Sc. nat., 6 e ser., t. ii, p. 84. 



„ „ „ Panceri. Atti Soc. Ital., vol. xviii, p. 528. 



1885. „ „ Carus. Fauna Medit., p. 255. 



1888. Nerine vulgaris, Cunningham and Ramage. Trans. Roy. Soc. Edinb., vol. xxxiii, p. 636. 



1892. Scolecolepis vulgaris, Marenzeller. Zool. Jahrb., Abth. f. Syst., vi, p. 427. 



1893. Spio fuliginosus, Lo Bianco. Atti d. R. Accad. d. Sc. Napoli, vol. v, ser. 2, No. 11, p. 27. 

 1896. Scolecolepis fuliginosa, Mesnil. Bull. Sc. Fr. Belg., xxix, p. 132, pi. vii, fig. 21 — 27, pi. viii, 



figs. 1—11. 



1908. Spio fuliginosus, Salensky. Bull. Acad. Imper. St. Petersb., p. 698. 



1909. „ „ Lo Bianco. Mitt. Zool. Stat. Neap., Bd. xix, p. 587. 



,, Scolecolepis fuliginosus, Mcintosh. Ann. Nat. Hist., ser. 8, vol. iii, p. 160. 



1910. „ „ Elwes. Journ. M. B. A., vol. ix, p. 62. 



1914. „ fuliginosa, Southern. Proc. Roy. Irish Acad., vol. xxxi, no. 47, p, 96. 



Habitat. — Not uncommon between tide-marks at Luccomb Chine, Isle of Wight, in 

 sand (W. C. M.) ; between tide-marks at Whitby (Dr. Carrington) ; deep sea fishing off 

 St. Andrews Bay (E. Mcintosh) ; Torquay (Elwes); Blacksod Bay (Southern). 



It is found abroad in the Mediterranean, Naples (Claparede and Panceri) ; shores of 

 France (Mesnil). Claparede procured it along with Capitella capitata and Polydora 

 Agassizii in the harbour of Naples. Sebastopol (Salensky). 



Head (Plate XCVIII, fig. 4) in lateral view somewhat more pointed than in 8. 



144 



