264 FABRICIA SABELLA. 
capillary with tapered tips and. narrow wings. Hooks of two kinds, the anterior rostrate, 
with long, tapering and curved shafts, large flat crowns, a main fang and four teeth above 
it. The hooks of the last three segments are minute, have a broad base, long neck and long 
crown with a series of equal teeth. Social; in tubes of secretion and mud. 
1. FABRICIA SABELLA, Ehrenberg, 1836. AMPHICORA FABRICIA, O. F. Miller, 1776. Plate 
CXIV, fig. 5—body ; Plate CX XIX, figs. 7 and 7a—bristle and hook. 
Specific Characters.—Branchial filaments three on each side, with long basal and shorter 
distal pinnz so as to make, when folded, a fairly even series distally. No tentacles. Body 
of thirteen to fourteen segments and about 3—5 mm. in total length. Two eyes on first 
and last segments, or four anteriorly and two posteriorly. First two segments narrower. 
Rounded in preservation, often flattened in life ; nearly cylindrical throughout the greater 
part, and only tapered posteriorly. Eleven pairs of bristle-bundles. Bristles simple, tapered 
at the tip, and with narrow wings. Hooks with long, tapering and curved shafts diminished 
inferiorly, and with a comparatively large, flat crown, a main fang and about four teeth 
above it. Minute hooks of the last three bristled segments wholly differ, having a broad 
base, long neck, and long crown with a series of equal teeth. 
Colour of the body reddish brown, or dull brown. Social ; im tubes of secretion and mud. 
SYNONYMS. 
‘1776. Tubularia Fabricia, O. F. Miller. Zool. Danic. Prodr., n. 3066, p. 254. 
ss a Fabricius. Fauna Gronl., p. 440. 
1828. Fabricia stellaris, Blainville. Dict. Se. nat., t. lv, p. 439. 
“1835. Othonia Fabricti, Johnston. Loud. Mag. Nat. Hist., viii, p. L8l} fig: 19: 
y 
1836. Amphicora sabella, Ehrenberg. Mitth. Ges. Nat. Freunde in Berlin, 1836, pp. 2, 4. 
1837. Naws equsetina, Dugés. Ann. Sc. nat., 2° sér., t. vill, p. 34, pl. i, fig. 24. 
1844. Amphicora sabella, Hirsted. Region. Mar., p. 68. 
¥ 1845. Othonia Fabric, Johnston. Ann. Nat. Hist., xvi, p. 448. 
1847. Fabricia quadripunctata, Frey and Leuckart. Beitriage, p. 157. 
“1848. Amphicora sabella, H. O. Schmidt. Neue Beitr. Naturgesch. Wiirmer, p. 21, Tab. 1. 
“1849. a affinis, Leuckart. Arch. f. Naturges., Bd. xv, p. 193. 
7 1851. Fabricia sabella, Grube. Fam. Annel., p. 95. 
1853. . Dalyell. Pow. Creat., vol. 11, p. 248, pl. xxxi, figs. 10 and 11. 
“ 1855. Othoma Fabricii, Gosse. Ann. Nat. Hist., 2 ser., xvi, p. 33, Tab. iv, fig. 22. 
/ 1861. Fabricia sabella, Claparéde. Recher. Annél., Turbell., Hébrid., p. 50, pl. iv, figs. 11—15. 
“1865. Othonia Fabricii, Johnston. Cat. Worms Brit. Mus., p. 274. 
»  Labricia amphicora, De Quatrefages. Annel., 11, p. 464. 
- ; quadripunctata, Mecznikow. Zeitschr. f. wiss. Zool., xv, p. 328, pl. xxiv, figs. 1-4. 
°1867. Amphicora Fabricia, Malmgren. Annul. Polych., p. 117. 
»  Labricia quadripunctata, Marcusen. Arch, f. Naturges., p. 358. 
9% 1868. Fabricia sabella, Claparéde. Annél. Nap., p. 411. 
1874. Amphicora Fabricti, McIntosh. Ann. Nat. Hist., ser. 4, vol. xiv, p. 206. 
5 ) ne Malm. Annel. Goteb., p. 102. 
1875. % a McIntosh. Invert. and Fishes St. Andrews, p. 181. 
»  Fabricia sabella, Panceri. Atti Soc. Ital., vol. xvii, p. 233. 
