TITLES. 
Spong . 5 
43. Letellier, A. Une action purement mecanique permet d’expliquer 
comment les Cliones creusent leurs galeries dans les valves des huitres. 
Bull. Soc. Normand. (4 ser.) viii, pp. 149-166 (1895.) 
44. Levander, K. M. Ephydatia fluviatilis in den Esboer Skaren bei 
Helsingfors. Medd. Soc. Faun. Fenn. Heft 20, p. 120 (1894). 
45. Malfatti, P. Silicospongiae plioceniche. Atti Acc. Lincei (5 ser.) 
Rendic. iv, pp. 116-121 (1895). 
2 new species. 
46. Marshall, W. Niedere Thiere (Die Niederen Thiere von Professor 
Dr. Oskar Schmidt, neubearbeitet von Professor Dr. W. Marshall). 
Brehras Thierleben (3 ed.) x. [Spongien, pp. 625-656.] (1893.) 
47. Merill, J. A. Fossil Sponges of flint-nodules. Bull. Mus. Harvard, 
xxviii, pp. 1-26 (1895). [Summary, J. R. Micr. Soc. 1895, p. 643.] 
8 now spocios of Geodin. 
48. Minchin, E. A. On the origin of tho triradiato spicules of Leucoso- 
lenia. P. R. Soc. London, lviii, pp. 204 & 205 (1895). [Summaries, 
J. R. Micr. Soc. 1895, p. 642; Ann. Nat. Hist. (6) xvi, pp. 427 & 428.] 
49. Montgomery, T. H., Jun. On successive, protandric and prote- 
rogynic hermaphroditism in animals. Amer. Natural, xxix, 
pp. 528-536 (1895). [Sponges, p. 529.] 
Noldeke, B. (35) Zool. Rec. 1894. Summaries, J. R. Micr. Soc. 
1895, p. 60 ; Zool. Centralbl. i, pp. 818-822. 
50. Oka, A. Ueber die Knospungsweise bei Syllis ramosa , M‘Int. 
Zool. Anz. xviii (1895), pp. 462-464. 
51 . Ostroumov, — . Liste des Spongiaires de la Mer Noire, tir6e des 
travaux de Mr. Tscherniavsky. Congr. Zool. 2 sess. Moscou (1892), 
pt.«, pp. 159 & 160 [sep. 1 & 2] (1893). 
52. Palm^n, J. A. Det zoologiska sommerlaboratoriet pa Esbo-Lofo. 
Medd. Soc. Faun. Fenn. xix, pp. 101-109 (1893). 
53. Perrier, R. Traits de Zoologie. Pt. i. Paris : [Eponges, pp. 537- 
586, figg. 517-547] (1893). 
Petr, F. (37) Zool. Rec. 1894. Summary, Zool. Centralbl. ii, 
pp. 301 & 302. 
54. Rauff, H. Palaeospongiologie. Zweiter Theil. Fortsetzung. Spongien 
des Silurs. Ordnung Tetractwellida. Unterordnung Lithistina. 
Palseontogr. xli, pp. 223-271 [sep. pp. 347-395] 49 figg. pis. xx-xxvi 
[sep. xviii -xxiv] (1895). [Summary, Zool. Centralbl. ii, p. 749.] 
3 new genera ; 7 new species. 
55. Regel, F. Thuringen. Ein geograph isches Handbuch. 2. Theil. 
Biogeographie Bd. i. Pflanzen- und Thier-Verbreitung. Jena : 
(1894) [Spongillidm, p. 355]. 
56. Saville-Kent, W. The Great Barrier Reef of Australia, its pro- 
ducts and potentialities. London : 387 pp., 64 pis. (1893). 
