List of publications. Spong. 5 
Leidy, J. Note on the Boring Sponge of the Oyster. P. Ac. Philad. 
1891, p. 122. 
Itaphyrus grijffithsii identical with Cliona celata , Grant. 
Lendeneeld, R. von. (1) Die Spongien der Adria. I. Die Kalkschwamme. 
Z. wiss. Zool. liii, Heft 2 (1891), pp. 185-321 (First half), and Heft 3 
(1891), pp. 361-433 (Second half). Introduction (pp. 185-187). 
i. Literature, pp. 187-190. ir. Analytical part, pp. 191-321 & 361— 
374. m. Synthetical part : Calcareous Sponges in general, pp. 375- 
433. 
. (2) Ueber die Kieselnadolu von Geodia . Zool. Auz. xiv, No. 377 
(16th Nov., 1891), pp. 407-409. 
. (3) Das System der Kalkschwamme. SB. Ak. Wien, c, Abth. i, 
Heft i-iii, pp. 4-19. Abstract in J. R. Micr. Soc. 1891, pt. 5, p. 611. 
. (4) Bemerkungen fiber dio Spongien im Kauai von Lesina. Zool. 
Gart. xxxii^No. 9, pp. 263-265. 
An account of some of the Sponges of Lesina, and their habitats. 
— — . (5) Classification of Sponges. J. R. Micr. Soc. 1891, pt. 6, p. 751. 
Abstract of paper in Abh. Senck. Ges. xvi, pp. 361-439 [ vide Zool. 
Rec. 1890]. 
MacKay, A. H. Freshwater Sponges of Canada and Newfoundland. 
Tr. R. Soc. Canada, vii, 1889 (1890), Sect, iv, pp. 85-95, pi. iv. 
Martin, J. Aper^u General de l’Histoire Geologique de la C6te d’Or. 
Mem. Ac. Dijon (4) ii (1891) pp. 25-135. 
List of fossils, with several Sponges, j 
Matthew, J. F. (1) On Cambrian Organisms in Acadia. Tr. R. Soc. 
Canada, vii, Sect, iv, pp. 135-160, pis. v-ix. 
— — . (2) On the Occurrence of Sponges in Laurentian Rocks at St. 
John, N.B. Bull. Nat. Hist. Soc* New Brunswick, ix, pp. 42-45, 
figs. 1 & 2. 
Miller, S. A. Palaeontology. Advance Sheets from the 17th Report of 
the Geological Survey of Indiana, August, 1891 [pp. 32 &33, infra]. 
Norman, A. M. The genera Cyclostoma and Pomatias , and on a mis- 
applied rule of Zoological Nomenclature. Ann. N. II. (6) vii, pp. 
447-451. 
Discusses the use of the generic names Normania , Bwk., and Poecillastra, 
Soil., pp. 449 & 450. 
Perrier, E. Traits de zoologie. Paris. 
The Sponges are assigned the following position : — Metazoa. Type a, 
Phytozoa: 1st series, Spong ice. They are divided into Embranchement A, 
Calcareous Sponges ; Embr. b, Siliceous Sponges ( Hexactinellida , Hexacera - 
tina , Chondrospongke, and Cornacuspongice). 
1891. [VOL. XXVIII.] V 11 
