ANATOMY AND CLASSIFICATION OF THE AKENICOLIDiE. 555 



1882. Spengel, J. W.— 'Mitth. Zool. Stat. Neapel,' p. 15, and Taf. iv, 



fig. 54, Band iii, 1882. 



1883. Wilson, E. B. — 'Studies from Biol. Lab. Johns Hopkins Univ.,' 



p. 278, vol. ii, 1883. 



1885. Pruvot, G.— ' Arcliiv. Zool. exper.,' ser. 2, tome iii, 1885. 

 1880. Feitsch, G. — 'Arciiiv f. niiicr. Anat.,' Band xxvii, p. 13, 1886. 



1886. Jaquet, M.— 'Mitth. Zool. Stat, zu Neapel,' p. 297, Band vi, 1886. 



1887. Cunningham, J. T.— ' Quart. Journ. Micr. Sci.,' vol. xxviii, p. 239, 1887. 

 1887. EisiG, H. — 'Monogiaphie der Capitelliden des Golfes von Neapel,' 



Berlin, 1887. 

 1887. KuKENTHAL, W. — ' Jeuaische Zeitsclir. f. Naturw.,' Band xx, p. 511, 



1887. 

 1887. RoHDE, E.— 'Zool. Beitiage' (Sclineider), p. 73, Band ii. Heft 1. 



1887. WiBEN.— 'Kgl. Vetenik. Akad. Handlgr.,' Band xxii. No. 1, Stock- 



holm, 1887. 



1888. Cunningham, J. T., and Ramage, G. A. — 'Trans. Roy. Soe. Edin- 



burgh,' p. 648, vol. xxxiii, 1888. 



1888. Eriedlander, B. — ' Zeitschr. f. wiss. Zoologie,' Bd. xlvii, Heft. 1, 



1888. 



1889. Friedlander, B.— ' Mitth. Zool. Stat. Neapel,' Bd. ix, Heft 2, 1889. 



1889. HoRST, R.— ' Notes from the Leyden Museum,' vol. xi, Note x, 1889. 



1890. Ives, J.—' Proc. Acad. N. S. Philadelphia,' Part 1, pp. 73-5, 1890. 



1891. Benham, W. B.—' Quart. Journ. Micr. Science,' vol. xxxii, p. 325, 



1891. 

 1891. CuENOT, L. — 'Arch. Zool. exper.,' series 2, vol. ix, 1891. 



1891. Retzius, G. — ' Biologische Untersuchungen,' neue Folge, ii, p. 12, and 



pi. iv, fig. 4, Stockholm, 1891. 



1892. Andrews, E. A.—' Journ. of Morphology,' vol. vii, p. 1G9, 1892. 

 1892. Bles, E. J. — 'Report of Sixty-first Meeting of the British Association, 



held at Cardiff, 1891,' pp. 372-6, London, 1892. 

 1892. Cerfontaine, P. — 'Bull. Acad. Roy. Belgique,' series 3, tome xxiii, 



p. 742, 1892. 

 1892. Ehlers, E. — ' Zeitsclir. f. wiss. Zoologie,' vol. liii, supplement, 1892. 



1892. Lenhossek, M. von. — ' Archiv f. mikr. Anat.,' Band xxxix, H.eft 1, 



pp. 102-36, 1892. 



1893. Benham, W. B. — 'Journ. Marine Biol. Association,' nevi^ series, vol. iii. 



No. 1, p. 48, 1893. 

 1893. Lo Bianco, S. — ' Atti della Reale Accademia delle Scienze Fisiche e 

 Matematiche, serie seconda, vol. v. No. 11, p. 9, Napoli, 1893. 



