LIST OF PUBLICATIONS. 
Spong. 5 
title in the Z. wiss. Zool. xlviii, pp. 407-700, Taf. 26-40. For Abstracts of 
this paper, see also J. R. Micr. Soc. 1890, pt. 2, No. 75, pp. 190-192 ; Z. 
wiss. Mikr. vii. 1890, pp. 204-206 ; Humboldt, ix, Heft 4, pp. 116-120 ; 
Nature, xli, p. 570. 
[Lendenfeld, R. yon.] (7) Das System der Spongieu. Abh. Senck. 
Ges. xvi, Heft 2, pp. 361-439. 
The same as that published in the Biol. Centralbl. ix, 4, pp. 113-127. 
[ Vid6 Zool. Rec. 1889, Spongieu , pp. 4-6.] 
. (8) Monograph of the Horny Sponges (Review). Ann. N. H. (6) 
vi, 1890, p. 418, et seq. 
. (9) Sponges attached to Crabs. Nature, xli, p. 317. 
. (10) Die Gattung Stelletta. Abh. Ak. Berl. 1889 (1890), p. 75, 
10 pis. Abstr. in J. R. Micr. Soc. 1890, pt. 6, No. 79, p. 730. 
Consists of an introduction containing a diagnosis of the genus and a 
historical account of it, followed by a list of all the species of earlier 
writers, which the author looks upon as belonging to the genus Stelletta. 
An analytical portion containing detailed descriptions of 4 species. A 
synthetical portion describing the characteristics of the genus Stelletta ; 
and finally a diagnosis of the Adriatic species of Stelletta. [ Vide infra , 
Systematic.] 
Lo Bianco, S. Metodi usati nella Stazione Zoologica per la Conserva- 
zione degli animali marini. MT. z. Stat. Neap, ix, Heft, iii, pp. 435, 
et seq. 
Porifera , p. 445. 
Maas, Otto. Ueber die Entwickelung des Susswasserschwammes. Z. 
wiss. Zool. 1 (1890), Heft. 4, p. 527, Taf. xxii & xxiii. Abstrs. in 
J. R. Micr. Soc. 1890, pt. 6, No. 79, pp. 730 & 731, and in Am. Nat, 
xxiv, No. 288 (Dec., 1890), p. 1200 ; see also op. cit. No. 278 (Feb., 
1890), p. 186. 
[ Vide infra, Embryology.] 
Mackay, A. H. Freshwater Sponges of Canada and Newfoundland- 
J. R. Micr. Soc. 1890, pt. 5, No. 78, p. 614. Abstr. of paper in Tr. 
Soc. Canada, Sec. iv, 1889, pp. 85-95, 1 pi. 
Marciial, Paul. L’Acide Urique et la Fonction Renale chez les Inverte- 
br&3. Mem. Soc. Zool. iii, pt. 1 (1889), pp. 33-87. 
Sponges, Coelenterates, and Echinoderms, pp. 42 & 43. Uric acid has 
been sought for in these groups, but with negative results. [A resume 
of all previous researches given. No new observations on Sponges.] 
YON MarenzEller, Emil. Deutsche Benennungen f fir Poriferen, Ccelen- 
teraten, Echinodermen, uud Wiirmer. Yerh. z.-b. Wien, xl, Qrt. ii, 
1890, pp. 177-184. 
Sponges, p. 179. 
