INTRODUCTION. 
S pong. 3 
III. Under Geographical Distribution the most important memoirs 
are those of Dendy (4) on sponges from the Gulf of Manaar, Thiele (36) 
on sponges from the Coasts of Patagonia and Chili, Lundbeck (17) on 
N. Atlantic sponges, and Baer (1) on sponges from E. and S. Africa. 
There are no contributions of any note to the geological record of sponges. 
IV. The systematic portion of the Record includes much of interest, 
except for Hexactinellida, which are practically a blank. In Calcarea 
Urban (39) describes new forms from California, and Minchin (23) 
attempts to unravel an extraordinary tangle of mistaken identification 
and nomenclature in the case of a well-known European (and probably 
British) species of Ascon. In Demospongiae we have many important 
additions to the systematic catalogue from Dendy (4), Lundbeck (17), 
Thiele (36), Svarchevskii (35), Topbent (37), Pick (28), and Baer (1). 
Scarcely less important than the additions is the elimination by Schulze 
(31) of Haeckel’s socalled “ Deep Sea Keratosa,” long suspected, and now 
definitely proved, to be not sponges but Protozoa. 
Owing to the many rearrangements which the systematic arrangement 
of the Demospongiae has undergone, the Recorder has not attempted to 
classify sponges further than suborders in the present Record, but places 
all categories of lower taxonomic value in alphabetical order. 
I. TITLES* 
1. Baer, L. Silicospongien von Sansibar, Kapstadt und Papeete. Arch. 
Naturg. lxxii, 1906 (1905), pp. 1-32, pis. i-v. 
Abstract in Maas (20) p. 7. 
2. Bartelletti, V. Sulla posizione dei Poriferi nel regno animale. 
Boll. Naturalista xxv, pp. 84-91, 105 & 106. 
3. Blaschke, F. Die Gastropodenfauna der Pachycardientuffe der 
Seiseralpe in Siidtirol. Beitr. Pal. Oesterr.-Ung. xvii, pp. 161-271, 
pis. xix & xx. 
4. Butschli, O. Uber die Einwirkung coneentrirter Kalilauge auf 
kohlensauren Kalk und das dabei sich bildende Doppelsalz. Zool. 
Anz. xxix, pp. 428-430. 
Abstract in Maas (4) p. 4. 
5. Chapman, F. New or little known Victorian fossils in the National 
Museum, Melbourne. Part v. On the genus Receptaculites. With 
a note on R. australis from Queensland. P. Soc. Victoria xviii, 
pp. 5-15, pis. ii-iv. 
6. Clarke, J. M. Catalogue of type specimens of palaeozoic fossils in 
New York State Museum. Bull. N. York Mus. lxv [Spongise], 
pp. 12-34 & 769-772 ; also op. cit. lxxx, p. 43. 
7. Colgan, N. Notes on the invertebrate fauna of Skerries, Co. Dublin. 
Irish Natural. 1905, pp. 205-213. 
* An asterisk prefixed to a quotation indicates that the Recorder has not seen 
the Paper or Work referred to. 
1905. [VOL. XLII.] 
F 14 
