1896.] BRITISH HYDBOIBS AND MBDU3*. 499 



Maas, 0. 1893. Grasped. MedusGD. Plankton Exped. (Leipzig.) 

 Macahtnet. 1810. Phil. Trans, p. 202, pi. xiv. fig. 3. (London.) 

 M'iNTOsn, W. C. 1890. tit. Andrews Miir. Lab. Hep., No. xi. 



Ann. Nat. Hist. ser. 6, vol. v. pp. 290-306. 

 MoDEBB. 1791. Nova Acta phys. Med. vol. viii. (Stockholm.) 

 MiJLLEB, 0. F. 1700. Zool. Danicis et Norvegite, 8vo. (Havniae.) 



. 1788-1800. Zool. Danica. 4 vols, folio. (Havnia;.) 



Peach, C. W. 1849. lleport Eoy. Instit. Cornwall, pp. 43-53. 

 Peeojt and Lesueub. 1809. " Tableau de Mcduses." Mus. Hist. 



Nat. Annal. xiv. pp. 325-306. (Paris.) 

 QuATEEFAGES, A. 1812. " On EkiUherici." Ann. Sci. Nat. se'r. 2, 



torn, xviii, pp. 270-283. (Paris.) 

 liisso, A. 1820. Hist. Nat. de Nice, vol. v. (Paris.) 

 Saes, M. 1835. Beskrivelser og Lagt. etc. (Bergen.) 



. 1846. Fauna littoralis Norvegiag, i. (Christiania.) 



. 1859. "On the genus Cori/morpha" (Forhandl. i Vid. 



Selsk. i Christiania, 1859). Transl. by Dallas : Ann. Nat. Hist. 



ser. 3, vol. viii. pp. 353-300. 

 . 1877. On Cujiontoratus. Fauna littoralis Norvegias, iii. 



pp. 1-48, Taf. i.-ii. 

 Shaw. 1789. Nat. Miscell. vol. vi. pi. 190. 



. 1812. Nat. Miscell. vol. xxii. pi. 950. 



Slabbee. 1775. Physikalische Behistigungen. 4to. (Niirnberg.) 

 Steenstrup, J. 1842. Generationswechsel. Transl. by Busk: 



"Alternations ot' Generations." Eay Soc. 1845. 

 Vallentjn, 11. 1893. " Pelagic Life of Falmouth." Journ. Eoy. 



Instit. Cornwall, pp. 1-23. (Truro.) 

 Wagnee, E. 1841. Icones Zootomica;. (Leipzig.) 

 Will, F. 1844. Hora; Tergestinas. 4to. (Leipzig.) 

 WiNTHEE, Q. 1880. Naturh. Tidssk. Bd. xii. pp. 223-278. 



(Copenhagen.) 

 "Weight, T. S. 1868. Proc. Eoy. Phys. Soc. Edinb. vol. i. pp. 447- 



455, pis. xxii., xxiii. 

 . 1859. Edinb. New Phil. Journ. vol. x. pp. 105-114, 



2 plates. 

 . 1861. " Brit. Zoophytes." Ann. Nat. Hist. ser. 3, 



vol. viii. pp. 120-135, pis. iii.-v. 



EXPLANATION OF THE PLATES. 



Plate XVI. 



Fig. 1. Corymorpha nutans, adult $, X 10; p. 463. Valeucia, 1895. 



Fig. 2. Dipurena, ap.?, probably a young stage, X 60 ; p. 473. Plymouth, 1895. 



Fig. 3. Lar sabellarum {WiUsia stellaia), let stage, X 25; p. 468. Plymouth, 



1893. 

 Fig. 4. Lar sabellarum {WiUsia stellata), ZrH siane, x IS; p. 408. Plymouth, 



1893. 

 Fig. 5. Saphcnia mirabilis (?), an early stage, X 40 ; p. 493. Plymouth, 1895. 

 Fig. 5a. Diagram of the margin of the umbrella. 

 Fig. 6. Pkialidium buskianiim, adult, X 8 ; p. 488. Plymouth, 1895. 

 Fig. 6 a. Diagram of the margin of the umbrella. 



Fig. 7. Euchilota pilosella (?), an early stage, X 25 ; p. 484. Plymouth, 1895. 

 Fig. 7 a. Diagram of the margin of the umbrella. 



32* 



