1. PectinariacBklgica, Pallets, 1766. Plate CXVIII, figs. 4 and 4a—body and tube;
Plate CXXIV, figs. 1—1 c—-bristles and hook.
Specific Character—Psdeölse from ten to fifteen, large, flattened and tapered to a fine
point; a large corrugated firm surface of the crown above them, the margin of which is
deep and smooth, curves ventrally a little within the edge of the paleolse, and ends at the
long anterior cirrus. Two eyes over the brain. Veil (tentacle-membrane) restricted in
area, fan-shaped, and with ten to eleven (seventeen, Lo Bianco) large tapering papillas in
front, and a few others on the lateral edges as they pass to the mouth (in all about twenty-
five). The tentacles are fixed to its posterior border—which is smooth. Body about
70 mm. with the scaplia in addition. Second cirrus arises a little behind thé rim of the
crown, and this segment with the two branchial segments makes a region of three; the first
branchial segment has an incomplete glandular ridge ventrally, whilst that of the second is
complete. Third segment with two ventral lobes (Hessle). Seventeen bristled segments
anteriorly; thirteen with hooks, each with seven to eight teeth in profile. Dorsal surface
smooth and rounded; ventral with glandular areas and ridges in front; flattened and
grooved posteriorly. The next region consists of three bristled segments but hooks are
absent. The first two have glandular ridges ventrally, whilst the third approaches the condition
in the succeeding segments. . The third region has fourteen bristled segments and
prominent lamellae for the rows of hooks, the largest lamellae being in front. Bristles of
two kinds—simple, stout, tapering forms, with finely-tapered tips having traces of wings,
and those with a spear-head dilatation distally, a serrated edge, and long tapering hairlike
tips. Hooks commence on the thirteenth segment^ with seven to eight recurved
teeth beneath the crown, then a group with minute serrations, and lastly the sinuous
prow : the shaft is short. Two cement-glands. Caudal process tortoise-shaped, of five
segments, bent at more than a right angle to the dorsum; dorsal surface flattened, with
a median keel or process and symmetrically arranged transverse ridges; rim little
elevated; two notches beyond the hooks and occasionally a minute papilla or two.
Caudal hooks (six to twelve?) have stout straight shafts tapering toward the neck,
which first bends a little backward, then gently forward to a strong point. General
colour of the body yellowish-orange in females, whitish in males, and the branchiae
are reddish-yellow. Tube large, nearly straight, tapered, composed usually of small
grains so that the surface is smooth, the separate joints not clearly visible. Often
brownish.
Synonyms.
1766. Nereis cylindraria, var. belgica, Pallas. Miscell. Zool., p. 122, Tab. ix, figs. 3—13.
,, Sabella granulata, Linnaeus. Syst. Nat., p. 1268.
1773. Solen fragilis Spec. 2, Klein. Descr, Tubul. Mur., p. 21, Tab. i, fig. 5.
1777. Nereis cylindracea belgica, Pennant. Brit. Zool., iv, p. 147.
„ ,, conchilega, idem. Ibid., iv, p. 47.
„ Sabella tubiformis, idem. Ibid., iv, p. 148, Tab. xcii, fig. 163, and Edit,, 1812, iv, p. 372,
pi. xcv, fig. 2.
1791. Sabella belgica, Linnaeus. Gmelin’s Syst. Nat., i, p. 3749.
1805. „ granulata, Montagu. Test. Brit., p. 544.
1806. ,, belgica. Turton's Linn., iv, p. 611.
1807. Nereis pectinata, Turt. Brit. Fauna, i, p. 134.
„ Sabella granulata, idem. Ibid., p. 202.
' „ ' „ „ Pennant. Ibid., p. 134.
1812. Amphitrite auricoma, Pennant. Brit. Zool., iv, p. 91.
1817. ‘ „ Stewart. Elements, f, p. 389, pl.’xii, figs. 1, 2.
„ „ ,, Cuvier. Règne Anim. (Griffiths), t. xiii, p. 14 (fide auctorum).
1818. Pectinana belgica, Lamai*ck. Hist. Nat. Anim. s. Vert., t. v, p. 350 (excl. syn. Miilleri),
1820.
1827.
2nd Edit., p. 602.
1819. Gistenia Pallasii, Leach. Encycl. Brit., i, p. 452, Tab. xxvi.
:,, Sabella belgica, Martin. Conch. I., t. iv, f. 27.
Amphictene auricoma, Savigny. Syst. Anne!., p. 89, 2® Edit., t. xxi, p. 426 (excl. syn.).
Pectinana (Amphitrite) belgica, Bruguière. Encycl. ineth., pi. lviii, figs. 10—15 (after
Pallas).
Amphitrite belgica, Bose. Vers., 2nd Edit., vol, i, p. 198.
Pectinaria ,., Templeton. Mag. Nat. Hist., ix, p. 234.
49. Amphitrite auricoma, M. Edwards. Règne An. Illust.,'pi. vi, fig. 1.
-53. Pectinaria belgica, Chenu, lltli livr., p. 1, pi. ii, figs. 1—3.,
Amphitrite auricoma, Rathke. Ray Soc. Repts., p. 283.
„ „ Williams. Ann. Nat. Hist., ser. 2, vol. xii, p. 396.
Pectinaria belgica, Grube. Fam. Annel.,pp. 82 and 138. >
Uv Landsborough. Excnrs. Arran., p. 50.
Sabella „ (Amphitrite auncomd), Dalyell. Pow. Great., vol. ii, p. 178, pi. xxv,
figs. 5 and 6.
Johnston. Cat. Worms Brit. Mus., pp. 243, 345. .
,, De Quatrefages. Annel., p. 332.
.* ,, Malmgren. Nord. Hafs.- Annul., p. 356, Tab. xviii, fig.,42.
„ idem. Annul. Polych., p. 103.
neapolitana, Claparède. Annél. Nap., p. 382, pi. xxviii, fig. 2.
belgica, Grube. Schles. Gesell. (1870), p. 73, sep. abdr., p. 5.
, „ Malm. Annul. Göteb., p. 94.
„ Kupffer. Jahrèsb. Komm, deut., p. 151.
„ Encycl. Brit. Helminthol., p. 296, fig. 4, p. 68, figs. 11 and 12, and pi. cclxxv,
figs. 6 and 7.
,, Lenz. Jahr. Komm. deut. Anhang., p. 11.
,, Tauber. Annul. Danica, p. 126.
„ Levinsen. Vidensk. Meddel., p. 152.
„ Harvey Gibson. Proc. Lit. and Philos. Soc. Liverp, vol. xl, p. 349. „ Grieg. Bergens Mus. Aarb., p. 8.
Lo Bianco. Atti R. Accad. Napoli, vol. v, no. 11, p. 47.
r. belgica, Pallas ; Gistenia Pallasii, Leach; Amphitnte auricoma,
Cuvier ; Pectinana neapolitana, Claparède.)
1830.
1836.
1836-
1843-
1845.
1851.
1865. Pectinana
1866.
1867. „
1868.
1871.
1872.
1873.
1874.
1878.
1879.
1883.
1886. ?
1889.
1893.
(= Nereis cylindra
1894. Pectinana belgica, Bidenkap. Christ. Vet.-Akad. Forhaudl., p. 119.
1897. „ ■ ,, Michaelsen. Polych. deutsch. Meere, p. 162.
1900. >, ,, Ehlers. Schwed. Magell. Annel, p. 15.
1901. . ,,. •„ idem. Polych. Magell. u. Chil., p. 204.
1910. „ ,, Southern. Proc. Roy. Ii*ish Acad., vol. xxviii, p. 238.