1904.] SPOXGES OF THE GE^rUS LEUCOSOLEXIA. 395 



6. BE Blainville, H. M. D. Manuel cl'ActinoIogie ou de Zoo- 



phytologie. Paris, 1834, 2 vols. 



7. Ellis, J., & Solantder, D. The Natural History of many 



Curious and Uncommon Zoophytes. London, 1786. 



8. Fleming, J. A Plistoiy of British Animals. Edinburgh 



and London, 1828. 



9. Fristedt, K. Bidrag till Kannedomen om de vid sweriges 



vestra Kust lefvande Spongise. K. Svensk. "Vet.-Ak. Handl. 

 xxi. 1885, no. 6. 



10. Grant, R. E. Remarks on the Structure of some Calcareous 



Sponges. Edinb. New Phil. Journ. i. 1826, pp. 166-170. 



11. Grant, B,. E. Lectures on Comparative Anatomy, IV. 



Lancet, i. 1833, pp. 193-200. 



12. Haeckel, E. Prodromus eines Systems der Kalkschwamme. 



Jen. Zeitschr. v. 1870, pp. 236-254 ; (translation) Ann. 

 Mag. Nat. Hist. (4) v. (1870) pp. 176-191. 



13. Haeckel, E. Die Kalkschwamme, eine Monographie. 



Berlin, 1872, 3 vols. 



14. Johnston, G. A Histoiy of British Sponges and Lithophytes. 



1842. 



15. MiNCHiN, E. A. Suggestions for a Natural Classification of 



the Asconidse. Ann. Mag. Nat. Hist. (6) xviii. pp. 349-362 

 (1896). 



16. MiNCHiN, E. A. Sponges, in: Lankester, 'A Treatise on 



Zoology,' part ii. A. & C. Black, London, 1900. 



17. Montagu, G. An Essay on Sponges, with Descriptions of all 



the Species that have been discovered on the Coast of Great 

 Britain. Wernerian Memoirs, ii. 1812, pp. 67-122, pis. iii.- 

 xvi. 



18. PoLi:JAEFF, N. Report on the Calcarea dredged by H.M.S. 



'Challenger' during the years 1873-1876. Chall. Rep. Zool. 

 viii. 2 (1883). 



19. Schmidt, 0. Die Spongien des adriatischen Meeres. Leipzig, 



1862. 



20. Schmidt, O. GrundzUge einer Spongien- Fauna des atlant- 



ischen Gebietes. Leipzig, 1870. 



21. ScHUFFNER, 0. Beschreibungen einiger neuer Kalk- 



schwamme. Jen. Zeitschr. xi. (n. F. iv.) 1877, pp. 403-433, 

 pis. xxiv.-xxvi. 



22. Templeton, R. A Catalogue of the Rayed Animals found in 



Ireland. Magazine of Nat. Hist. ix. 1836, pp. 466-472, 

 figg. 66, 67. 



23. Vasseur, G. Reproduction asexuelle de la Leucosolenia 



hotryoides [Ascandra variabilis Haeckel). Arch. Zool. Exp. 

 viii. 1879, pp. 59-66. 



24. Weltner, W. Beitriige zur Fauna der sudostlichen und 



ostlichen Nordsee. I. Spongien. Wissenschaftliche Meeres- 

 untersuchungen, n. F. i. 1894, pp. 325-328. 



[Addendimi. — Since the foregoing memoir was Avritten ' and 



