posterior region has from thirty-five to forty segments. Colour reddish or pale orange
anteriorly, marked with red laterally. Posteriorly it is greyish yellow from the colour
of the mud in the intestine. Males are paler; females roseate. Branchiae are of a
deeper red. Each of the upper pair arises by a rather thick, fluted stem from the second
and third segments, the main divisions being dorsal, each having a basal process directed
backward and a fusiform dorsal region composed of vascular lamellae. The inferior
divisions are much smaller. The stomach is remarkable for the complexity of its folds,
the lateral chambers presenting a series of rings. In Octobranchns the stomach has two
lateral chambers. The first setigerous process commences on the second segment (third,
Hessle), and it and the second are smaller than those which follow. Bristles in a single
series, the stouter dorsal and the more slender ventral in position. Anterior hooks
commence on the sixth segment, and have along, slightly curved, finely striated shaft which
diminishes after the shoulder, the neck being bent a little backward and with a main
fang and four teeth in lateral view above it. The posterior hooks are avicular, with a
deep dimple above the base posteriorly and three large teeth above the chief fang. Base
convex inferiorly and the anterior prow is short. Tube of soft grey mud or of sand,
friable.
Synonyms.
1835. Terebellides Stroemii, Sars. Beskriv. og Iagttagelser, p. 48, Tab. xiii, fig. 31 a—d.
1843-53. ' „ stroemi, Chenu. Illust. Conch., 11® livr., pi. iv, fig. 8.
1846. Corephorns elegans, Grube. Arch. f. Naturgesch., Bd. xii, p. 161, Taf. v, fig. 1.
1851. Terebellides Strömii, Sars. Nyt Mag., Bd. vi, pp. 131 and 206.
„ >> ' stroemi, Grube. Fam. Annel., pp. 81 and 138.
„ Terebella pecten, Dalyell. Pow. Croat., vol. ii, p. 208, pi. xxvi, fig.
1853. Terebellides Strömii, Sars. Nyt Mag., Bd. vii, pp. 386 and 390.
1859. ,, stroemi, Danielssen. Kgl. Norske Yid.-Selsk. Skrift., 4de Bd., p. 123.
1861. „ strcemii, idem. Nyt Mag., xi, p. 55.
1863. „ stroemi, Loven. Foredrag Skandin. Nat. Sallsk. för. Offen., p. 6 (sep. c.).
1864. ,, ,, Grube. Insel Lussin, p. 89.
1865. „ ,, De Quatrefages. Annel., t. ii, p. 374.
„ if „ Johnston. Cat. Worms Brit. Mus., pp. 242 and 345.
1869. „ Strömii, D. Robertson. Proc. Nat. Hist. Soc. Glasgow, i, p. 84.
1871. ,, stroemi, Ehlers. Ann. Nat. Hist., ser. 4, vol. viii, p. 57.
1873. „ Verrill. Rep. Fish Com., p. 613.
„ „ stroemii, Kupffer. Jahres. Horn, deutsch., p. 152.
„ „ stroemi, Mcebius. Exped. Ostsee, pp. 109 and 152.
1874. „ „ McIntosh. Ann. Nat. Hist., ser. 4, vol. xiv, p. 205.
„ „ „ and gracilis, Malm. Göteborg Fauna, p. 100.
1875. „ „ McIntosh. Invert, and Fishes St. Andrews, p. 130.
j, „ „ Ehlers. Zeitschr. f. w. Zool., Bd. xxv, p. 23.
1877. ,, „ Grube. Monatsb. Königl. Akad. Wiss. Berlin Aug., p. 511.
,, „ strömi, Marenzeller. Denksch. Kaiser 1. Akad. Wiss. Wien, Bd. xxxv, p, 36, sep. abd.
1878. ,, Stroemii, McIntosh. Trans. Linn. Soc., ser. 2, Zool, p. 508.
„ „ stroemi, Lenz. Jahresb. Com. deutsch. Meere., p. 11.
1879. „ „ Thöel. Kgl. Sv. Yet. Akad. Handl., Bd. xvi, p. 64.
1879.
1881.
1882.
1883.
1885.
1886.
1887.
1888.
1889.
1890.
1892.
1893.
1894.
1896.
1897.
1898.
1899.
1900.
1901.
1902.
1903.
1904.
1906.
1908.
1909.
1910.
1912.
1913.
1914.
Terebellides Stroemii, Tauber. Annul. Danica, p. 135,
„ stroemi, Horst. Annel. “ Barents,” Niederl. Arch. Zool. Suppl., Bd. i, p. 24.
,,. „ Hansen. Norske Nord. Exped., No. 7, p. 15.
„ strömi, Wirén. Chætop. “ Yega” Exped., p. 421.
„ Levinsen. Yidensk. Meddel., p. 173.
„ • stroemi, Carus. Fauna Médit., i, p. 268.
„ ,, Wirén;. Köngl. Sv. Yet. Akad. Handl., Bd. xxi, p. 18, Taf. iii, figs. 5—10,
Taf. iv, figs. 1—6, Taf. vi, figs. 3 and 5.
„ strömi, Levinsen. Kara-Havets, etc., p. 13,
„• stroemi, Webster. Ü.S. Corn. F. & F., p, 750.
. . strömi, idem. Chæt. Eastport, Maine, U.S. Corn. F. & F., p. 750. ’
„ stroemii, Cunningham and Ramage. Trans. Roy. Soc. Edin., vol. xxxiii, p, 667,
pl. xliv, fig. 29.
„ stroemi, Grieg. Bergens Mus. Aarb., Art. 2, p. 8.
,, strömi, E. Meyer. ' Arch. f. Naturges., lv, p. 133.
„ stroemi, Marenzeller. Ann. K. K. Naturhist. Hofsmns. Wien, Bd. v, p. 2.
„ „ idem. Polych. Bremer Exped., p. 402.
„ „ Lo Bianco. Atti R.- Accad. Sc. Nap., vol. v, No. 11, p. 61.
„ „ Levinsen. Annul. "Hauchs,” p. 351.
„ „ Bidenkap. Christ. Yet.-Akad. Forhandl.,. p. 125.
,, „ Appellöf. Bergens Mus. Aarb., No. 13, p. 12.
„ Stroemii, Ehlers. Hamb. Magel. Sam., p. 134.
„ stroemi, Michaelsen. Polych. deutsch. Meere, p. 174.
„ n „ Yanhöffen. Grönland Exp., Bd. ii.
,, stroemii, Michaelsen. Grönland Annel., p. 130.
„ stroemi, Ssolowiew. Ann. Mus. St. Pétersb., t. iv, p. 190, Tab. x, fig. 3.
. „ strömi, Wollebæk. Skrift. Vid.-selsk. Krist., No. 18, p. 78, pl. xviii, figs. 1—9.
,, stroemi, Ehlers. Schwed. Magell. Annel., p. 16.
, „ idem. Polych. Magell. u. Chil., p. 213.
„ strömi, Gourret. Mém. Soc. Zool. France, t. xiv, p. 376, pl. viii, fig. 2.
• „ - ,, Whiteaves. Mar. Invert. E. Canada, p..72.
„ stroemi, Marenzeller. Denkschr. Math. Nat. Cl. Kaiserl. Akad. wiss. Wien, Bd.
lxxiv, p. 22.
„ ,, Moore. Proc. Acad. Nat. Sc. Philad., p. 478.
7 „ strömi, Norman. Ann. Nat. Hist., ser. 7, vol. xii, p. 283.
„ stroemi, Journ. M. B. A., vol. vii, p. 229.
„ stroemi, Augener. Westind. Polych., p. 181.
,, strömi, Levander. Meddel. Soc. Fauna Fennica, Hf c. 34, p. 212.
„ -, stroemi, Ehlers. Deutsch. Tiefsee-Exped., p. 154.
„ „ Moore. Proc. Acad. Nat. Se. Philad., p. 352.
„ „ Fauvel. Bull. lust. Oceanogr., .No. 142, p. 39.
„ „■ Lo Bianco. Mitt. Zool. Stat. Neap., Bd. xix, p. 588.
„ strömi, Skorikow. St. Petersb. Mus. Ann., xv, p. 213.
,, stroemi, Ditlevsen. Danmark-Eksped. Grönl., Bd. v, p. 428.
„ „ Meyer, A. H. Iuaug. Dissert., p. 50.
„ Augener. Zool. Anz., Bd. xli, p. 270.
,} ' „ Fauvel. Ann. Polych. “ Hirondelle,” p. 309.
„ strömi, Southern. Proc. Roy. Irish Acad., vol. xxxi, No. 47, p. 128.
„ „ Fauvel. . Campag. Scient. Monaco, xlvi, p. 309.