FABRICIA. 263 
1864. Spirographis spallanzan, Grube. Insel Lussin., p. 30. 
1865. Sabella unispira, Johnston. Annel. Brit. Mus., p. 262. 
»  Sptrographis spallanzani, De Quatrefages. Annel., t. 11, p. 427. 
D 9% elegans, idem. Ibid., t. 11, p. 430. 
a; _ brevispira, idem. Ibid., t. 11, p. 430. 
» Sabella ventilabrum, idem. Ibid., t. 11, p. 554. 
»  ¢ Spirographis longispira, idem. Ibid., t. 11, p. 429. 
1868. es spallanzani, Claparéde. Annel. Nap., p. 415, pl. xxx, fig. 2. 
1870. ss es idem. Ibid., Suppl., p. 186. 
»  NSabella spallanzan, Grube. Arch. f. Naturges., p. 339. 
1873. Spirographis spallanzani, Claparéde. Recher. Annel. Sed., p. 10, pls. i and v. 
1875. 3 
» NSabella unispira, Marion and Bobretzky. Ann. Sc. nat., 6° sér., t. 1, p. 91. 
_ Marion. Rev. des Sc. nat., iv, p. 474. 
»  NSptrographis spallanzant, Panceri. Atti Soc. Ital., vol. xvin, p. 533. 
1885. Bs a and longispira, Carus. Fauna Medit., 1, p. 273. 
“ = bi Pruvot. Arch. Zool. Expér., 2° sér., t. ui, p. 3406. 
1886. eB 5 Jaquet. Mitt. Zool. Stat. Neap., Bd. vi, p. 359, pl. xxxi, figs. 67—70. 
1887. i % Meyer. Ibid., Bd. vu, p. 716, Taf. xxi, xxii, etc. 
1888. o i idem. Ibid., Bd. vu, p. 478, pl. xxv, figs. 25—29. 
1890. as iF Chiji. Organi excret. Serpul., p. 28, etc., pls. 11, iv, ete. 
1891. 53 ‘s Soulier. Trav. Inst. Zool. Montpel., nouv. sér., Mém. 2, pp. 29—47, 
etc., pls. i—v, vil and x. 
1893. a 5 . Lo Bianco. Atti Sc. Neap., 2™° sér., t. v, p. 73. 
1898. ¥ a5 Soulier. Trav. Inst. Zool. Montpel., 11, pp. 343—s46. 
. - De St. Joseph. Ann. Se. nat., 8° sér., t. v, p. 429. 
1899. - ie Vaney et Conte. Comp. Rend. Soc. Biol. Paris, 16 Dec., p. 878. 
1901. ; %, Brunhiol. Comp. Rend. Acad. Paris, t. exxxu, p. 1848. 
1902. a 5 Soulier. ‘'rav. Inst. Zool. Montpel., sér. 2, Mém. 10, pp. 8—12, 
text-figs. 
1909. RS . Fauvel. Ann. Sc. nat., 9° sér., t. x, p. 210. 
1913. fy - Ehlers. Deut. Sud-Polar Exped., p. 570. 
1917. re i Rioja. Anél. Poliq. Cantab., p. 61. 
Habitat—Southern shores (Dr. Williams). Benham (Camb. Nat. Hist.) observes that 
it occurs off the Channel Islands, though it was not seen by the author when dredging there. 
Arnold Watson also states that he saw an example from the English shores. 
Shores of France, St. Vaast-la-Hogue (Fauvel). Mediterranean (Risso, Verany, Delle 
Chiaje, Claparéde, shores of Cantabria (Rioja). Azores (Ehlers). 
This species has not been procured by the author in British waters, but others seem to 
have been more fortunate. 
In his account of the nervous system of Sabellids, Pruvot (1885) describes the neural 
canals of this species as in the substance of the nerve-cords. 
Genus CLXVII.—F apricta, De Blainville, 1828. Ampuicora, Ehrenberg, 1836; Leuckart and 
Claparede. OvtHonta, Johnston, 1834 ; Gosse. 
Cephalic region distinct; collar almost absent; branchial filaments few, bases free. 
Body with few segments, regions not distinct. Eyes on first segment and on last. Bristles 
