SABBLLIDBS 0CT0C1RRATA. 75 



processes on each side. No palmulse. Body comparatively short, slightly attenuate 

 posteriorly and ending in two anal cirri ; segments not numerous ; anteriorly both bristles 

 and hooks, posteriorly only pinnules for hooks. Four slender subulate branchise on each 

 side on the dorsum of the third segment. Setigerous processes fourteen, commencing on 

 the third segment ; the first process under the first branchia very small, but with con- 

 spicuous bristles. Uncinigerous pinnules commence at the sixth segment—that is, the 

 fourth setigerous — and extend to the penultimate segment ; the posterior segments (behind 

 the eighteenth — the thirteenth uncinigerous) furnished with a small dorsal cirrus. Anal 

 segment with two cirri. Neither oesophageal lobes nor stomachal sac. Nephridia in the 

 fourth segment with long tubes, the rest with short tubes, those in the fourth segment 

 opening dorsally. Capillary bristles with a curved and winged tip. Uncini uniserial 

 with five to seven long sharp teeth. Tube smooth ; composed of mud. 



1. Sabellides octocirrata, Bars, 1835, var. brifannica, Mel. Plate CXVIII, fig. 11— body ; 

 Plate CXXIV, figs. 7,7 a, 7 6— bristle and hooks ; Plate CXXXVIII, fig. 2— body 

 (after Malmgren). 



Specific Characters. — Cephalic lobe conical. Tentacles ciliated, twenty, contractile, 

 unequal, rectractile. Two simple eyes. Paleae about five on each side. Body typical 

 with fourteen pairs of bristle-bundles anteriorly ; bristles short, translucent, with 

 slightly curved, winged, and tapering tips. Branchiae four on each side on the third 

 segment. Uncinigerous tori commence on the fourth setigerous segment and are 

 seventeen in number ; hooks with four teeth. Posterior region with fifteen uncinigerous 

 processes. Hooks also with four teeth. 1 Nephridia in the fourth, sixth and seventh 

 segments. 



Synonyms. 

 1835. Sabella ? octoeirrata, Sars. Beskriv. og. Iagtt., p. 5, Tab. xiii, figs. 32 a — g. 

 1843. Sabella „ Rathke. Nova Acta. Cur., Bd. xx, p. 222. 



1843-53. Sabellides „ Cheim. Illust. Conch., ll e Kvr., pi. iv, fig. 9. 



1851. Sabellides „ Sars. Nyt Mag., Bd. vi, pp. 132 and 205. 



1853. „ „ idem. Ibid., Bd. vii, p. 370. 



1859. „ „ Danielssen. Kgl. Norske Vid.-selsk. Skrift., Bd. 4 de , p. 123. 



1861. „ „ idem. Nyt Mag., xi, p. 55. 



1863. „ ,, Claparede. Beobach., p. 36. 



1865. „ „ De Quatrefages. Annel., ii, p. 377. 



1871. „ „ Grube. Schles. Gesell. (1870), p. 79, sep. abdr., p. 12. 



1872. „ „ Malm. Annul. Goteb., p. 95. 



1875. „ „ and adspersa, Marion. Rev. Sc. nat., t. iv, pp. 308 and 470. 

 „ „ adspersa, Panceri. Atti Soc. Ital., vol. xviii, p. 532. 



1876. Sabella octoeirrata, Oscar Grimm. Ann. Nat. Hist., 4th ser., vol. xvii, p. 176. 

 1879. „ „ Marion. Ann. Sc. nat., 6 e ser., t. viii, p. 21. 



1883. „ „ Levinsen. Vidensk. Meddel., p. 160. 



1885. „ „ Cams. Fauna Medit., i, p. 268. 



1887. „ „ Webster. Chsetop. Eastport, Maine (U.S. Comm. F. and F.), p. 745. 



1 Five teeth (Car us) ; eight teeth posteriorly in two or three rows (Hessle). 



