224 SABBLLA PENICILLUS. 



except that the base is more elongated posteriorly. Tube of tough secretion and mud 

 150 — 200 mm. long and 3 or more mm. in diameter. 



The general structure of the body-wall in the anterior region is indicated in Fig. 150 

 after the nerve-cords have approached more closely to each other. The large size of the 

 neural canals (mix.) containing the coagulable substance is noteworthy. 



Synonyms. 



1555. Penicillus marinus, Rondel. Hist. Poiss., pt. ii, p. Ill, and fig. 



1606. „ „ Aldrovandus, p. 561, with fig. 



1755. Fucus maritlmus, Ellis. Coral]., p. 88, Tab. xxxiii. 



1758. Serpula penicillus, Linnasus. Syst. Nat., Edit, x, vol. i, p. 788. 



1762. Scolopendra major tubular la, Baster. Opusc. Subsec, ii, p. 77, Tab. ix, fig. 1. 



1766. Serpula penicillus and Nereis lutaria, Pallas. Misc. ZooL, p. 116, Tab. x, fig. 1. 



1767. Sabella „ Linnaeus. Syst. Nat., ed. xii, p. 1269 (excl. syn. Eond. Ellis & Syst. Nat., x). 

 1776. Tubularia penicillus, O. E. Miiller. Zool. Danica Prodr., p. 254 (No. 3063). 



1780. „ „ Fabricius. Fauna Greenland, p. 438. 



l* 78 ^ „ ;; O. F. Miiller. Zool. Danica, iii, p. 13, Tab. Ixxxix, figs. 1 and 2. 



1803. Sabella „ Montagu. Test. Brit., vol. ii, p. 541. 



1806. Ampharete „ Turton's Linn., p. 82. 

 ,, „ ventilabrum, idem. Ibid., p. 82. 



1807. Sabella „ Turton. Brit. Fauna, vol. i, p. 136. 

 i9 „ penicillus, idem. Ibid., p. 202. 



1808. Amphitrite ventilabrum, Montagu. MS. vol. Linn. Soc, pi. iv, fig. 3 and pi. xix* 



1811. Sabella pavonina, Jameson. Wern. Mem., i, p. 558. 



1812. Amphitrite ventilabrum and penicillus, Grmelin. Syst. Nat., xiii, I, pt. vi, pp. 3110 and 3111. 

 „ Sabella penicillus, Pennant. Brit. Zool., vol. iv, p. 369. 



1815. Spirographis penicillus, Oken. Lehrbuch, Bd. ii, p. 380. 



1817. Amphitrite ventilabrum, Cuvier. Keg. An., t. ii, p. 519. 

 ,, Sabella alveolata, idem. Ibid., p. 521. 



„ ,, penicillus, Stewart. Elements, i, p. 389. 



1818. Amphitrite penicillus, Lamarck. Anim. s. Vert., t. v, p. 356, Edit. 2, p. 610. 

 1820. Sabella pavonina, Savigny. Syst. Annel., p. 79. 



„ „ ventilabrum, idem. Ibid., p. 81. 



1823. Tubularia penicillus, Fleming. Edin. Philos. Journ., viii, p. 295. 

 1826. Amphitrite „ Eisso. Europ. Merid., t. iv, p. 410. 



33 „ „ Payraudeau. Annel. and Mollusc. Corse, p. 20. 



1828. „ „ and pavonina, De Blainville. Diet. Sc. nat., t. lvii, p. 434. 



1830. „ penicillus, Bosc. Vers., 2nd Edit., vol. i, p. 199. 



1834. „ ventilabrum, Dalyell. Edin. New Philos. Journ., xvii, p. 415. 



1835. Sabella penicillus, Sars. Beskr. og Jagt., p. 47. 



1839. Amphitrite ventilabrum, Bruguiere. Encyclop. Method., pi. lix, figs. 1 — 4. 

 1841. Sabella „ Delle Chiaje. Descriz., t. iii, p. 71. 



1843. „ penicillus, H. Rathke. Nova Acta Acad. C. L. C. Nat., Bd. xx, p. 225, Tab. xii, figs. 5 — 7. 

 1843-53. ? Amphitrite Mulleri, Chenu. Illust. Conch., ll e liviv, pi. v, fig. 8. 



,3 „ ventilabrum, idem. Ibid., ll e livr., pi. vi, fig. 5. 



1844. Sabella penicillus, CErsted. Nat. Tidsk., ser. 2, i, p. 415. 



