XVII. SPONGIAJ. 
4 8 'pony. 
33. Norman, A. M. A month* on the Trondhjem Fjord. Ann. Nat. 
Hist. (ser. C) xii, pp. 341-367, pi. xvi. 
Spongke , pp. 347 & 349 (none new). 
34. P. A. A. A Shore-collecting Trip to Jersey. Int. J. Micr. Soc. iv, 
pp. 113-118. 
Popular narrative ; Spongke , p. 115. 
Phillips, F. [See Roberts & Phillips (41).] 
35. Ratiibun, R. Report upon the Inquiry respecting Food-Fishes and 
the Fishing-grounds. Rep. U. S. Fish Comm, xvii (1889-1891), 
pp. 97-171. 
Sponges, p. 167. 
36. Rauff, H. Ueber den Fossilisationsprocess derjenigen verkieselten 
Spongien, deren Hauptmasso jetzt aus Chalcedou gebildet wird, 
wahrend das Skelet darin aus Kalkspath besteht, obschon das 
lebende Thier ein rein kieseliges Geriist besass. Yerh. Ver. Rhein- 
land, xlix, pp. 51-57. 
37. . Untorsuchungen iiber die Organisation und systematische 
Stellung der Receptaculitiden. Abh. Bayer. Ak. xvii, pp. 645-722, 
12 figg., 7 pis. 
The lleceptacululce do not belong to the Spongitc ; their systematic 
position is uncertain. 
38. . Ueber Polggonosphcerites. JB. Mineral. 1893, i, pp. 43-49, 
7 woodcuts. 
P. is probably not Sponge, but a fossil Alga. 
39. . Ueber angebliche Spongien aus dem Archaicum. Op. cit. ii, 
pp. 57-67, 3 woodcuts. 
The structures from Laurentian Rocks, described by Matthew (seo 
Zool. Rec. 1891) as Sponges, are most doubtful. 
40. . Palaeospongiologie. 1. Theil. Palaeontogr. xl, lief. 1-4, 
pp. 1-232, 48 woodcuts. 
41. Roberts, R. L., & Phillips, F. The Spongkla or Porifera. J. 
Micr. & Nat. Sci. (3) iii, pp. 337-358, pis. xiv-xvi. 
42. Schulze, F. E. Revision des Systemes der Ilyalonematiden. SB. 
Ak. Berlin, 1893, hft. 30, pp. 541-589. Abstract in J. R. Micr. 
Soc. 1894, p. 70. 
2 new species. 
43. . Ueber die Ableitung der Hexactinelliden - Nadeln vom 
regularen Hexactine. MT. Ak. Berlin, 1893, No. ix, pp. 607-613, 
1 woodcut. Abstract iu J. R. Micr. Soc. 1894, p. 352. 
44. Stedman, J. M. Has the Fresh-water Sponge a Nervous System ? 
Amer. Micr. J. xiv, No. 2, p. 48. 
Thomas, B. W. [See Woodward & Thomas (70).] 
