354 THE VOYAGE OF H.M.S. CHALLENGER. 



19. 1824. Quoy et Gaimard, Voyage do 1'Uranie et de la Pbysicienne, Zoologie, p. 577, pis. lxxxvi., Ixxxvii. 



20. 1827. Qooy et Gaimard, Observations zoologiques faites a bord de r Astrolabe dans le Detroit de Gibraltar. 



Ann. d. Sci. Nat. (Zool.), torn. x. (German translation, Okeris Isis, 1828, Bd. xxi. p. 330, Taf. 

 iii.-v.). 



21. 1825. Eschscholtz, J. Friedrich, Bericht liber die zoologiscbe Ausbeute der Reise. Oken's Isis, p. 743, 



Taf. v. figs. 14-17. 



C. Works treating of different single parts of the class, or of its general organisation, 

 all after Eschscholtz (1830-1888) :— 



22. 1830. Lesson, R. P., Voyage de la Coquille, Zoologie, tom. 2, ii., Zoophytes, chap. xv. pis. iv.-vii., xiv.-xvii. 



23. 1834. Meyen, F. J. F., Beitrage zur Zoologie. Nova Ada Acad. Nat. Curios., tom. xvi., Suppl. i. 



24. 1834. Blainville, Ducrotay de, Manuel dActinologie ou de Zoophytologie, pp. 111-140. 



25. 1835. Brandt, J. Friedrich, Prodromus descriptions animalium ab H. Mertensio in orbis terrarum 



circumnavigatione observatorum, pp. 31-41. 



26. 1840. Milne-Edwards, Sur les Acaleph.es hydrostatiques. Comptes rendus, tom. x. p. 780; lTnstitut, tom. 



viii. p. 175. 



27. 1846. Sars, Michael, Fauna littoralis Norvegiaj, Heft i. pp. 31-46, Taf. v.-vii. (Agalmopsis, Diphyes). 



Heft iii. (1877) p. 32, Taf. v., vi. (Physophora). 



28. 1848. Vogt, Carl, Ocean und Mittelmeer. Reisebriefe. Bd. i. pp. 309-330. 



29. 1851. Huxley, Thomas H., An account of Researches into the Anatomy of the Hydrostatic AcaJ.epb.se. 



Rep. Brit. Assoc, p. 78. 



30. 1851. Huxley, Thomas H., Uber die Sexual-Organe der Diphyiden und Physophoriden. Mailer's 



Archiv f. Anat. u. Physiol., p. 380. 



31. 1854. Gegenbaur, Carl, tjber einige niedere Seethiere. Zeitschr. f. wiss. Zool., Bd. v. p. 103. 



32. 1859. McCrady, John, Gymnophthalmata of Charleston Harbour. Proe. Elliot Soc. Nat. Hist. 



Cliarleston, vol. i. pp. 139-147 (Velellidas), pp. 169-181 (Siphonophoras.) 



33. 1861. Keferstein und Ehlers, Zoologiscbe Beitrage. I. Die Siphonophoren von Neapel und Messina, 



pp. 1-34, Taf. i.-v. 



34. 1860. Claus, Carl, Uber Physophora hydrostatica, nebst Bemerkungen iiber andere Siphonophoren. 



Zeitschr. f. wiss. Zool., Bd. x. p. 295, Taf. xxv.-xxvii. 



35. 1863. Claus, Carl, Neue Beobachtungen uber die Structur und Entvvickelung der Siphonophoren. 



Zeitschr. f. iviss. Zool., Bd. xii. p. 536, Taf. xlvi.-xlviii. 



36. 1862. Agassiz, Louis, Contributions to the Natural History of the United States of America. Vol. iv. 



pp. 333-336, and pp. 366-372. (Catalogue of the genera and species described.) 



37. 1865. Agassiz, Alexander, North American Acalepha?. Illust. Catal. Mus. Comp. Zool., Harvard Coll., 



No. II., pp. 199-218. (Nanomia cara, p. 200.) 



38. 1869. Haeckel, Ernst, Uber Arbeitstheilung in Natur und Menschenleben. (Anthemodes canariensis.) 



39. 1871. Muller, P. E., Jagttagelser over nogle Siphonophorer (Calyconeet»). Naturhist. Tidsskr. 



Kj0benhavn, 2 R., Bd. vii. p. 261, Taf. xi.-xiii. 



40. 1878. Studer, Theodor, Uber Siphonophoren des tiefen Wassers (Bathyphysa, Rhizophysa, &c). 



Zeitschr. f. wiss. Zool., Bd. xxxi. p. 1, Taf. i.-iii. 



41. 1879. Eewkes, J. Walter, Notes on Rhizophysa filiformis and Abyla pentagona. Proc. Boston Soc. Nat. 



Hist., vol. xx. pp. 292, 318. 



42. 1880. Fewkes, J. Walter, The Siphonophores. I. Agalma. American Naturalist, vols. xiv. and xv. 



(1881). II. Diphyes, Ibid., vol. xvi. (1882), vol. xvii. (1883), vol. xviii. (1884). 



43. 1881. Fewkes, J. Walter, Studies of the Jelly-Fishes of Narragansett Bay. Bull. Mus. Comp. Zool., 



vol. viii. No. 8, p. 163. 



44. 1881. Fewkes, J. Walter, Notes on Acalephs from the Tortugas, kc. Bull. Mus. Comp. Zool., 



vol. ix. No. 7, pp. 264-276, pis. v., vi.; No. 8, p. 302. 



