2 Spong. 
SPONGLE. 
Topsent’s statement [Topsent (6)], that the contractile cells in siliceous 
Sponges are the flattened ectoderm and endoderra, while the mesoderm 
forms only the connective tissue and the amoeboid digestive cells, is very 
striking, and if confirmed would furnish a comment on the classification 
of the Coslentera given by von Lendenfeld (7) into Mesodcrmalia 
(Sponges), with mesodermal organs, and Epithelaria ( Cnidaria ), with 
epithelial organs. 
LIST OF PUBLICATIONS * 
Anon. Notizie Sulla Pesca delle Spugne nei Banchi di Lampedusa. 
Minister© della Marina. Tipografia Bencini, Home and Florence, 
1890. [ Cf . Zool. Gart. xxxi, No. 1 (Jan., 1890), p. 28; Nature, xli, 
p. 284.] ' 
An account of the Sponge banks, and of the method of fishing and 
preparing the Sponges. 
Berthoule, Am^dee. Les Lacs d’ Auvergne. Bull. Soc. Acclim. xxxvii, 
No. 1, Jan. 5th, 1890, pp. 13-27. 
Eusponqilla lacustris> Yejdovsky, abundant in Lake Pavin (p. 25) : 
described by Paul Girod, Travaux du Laboratoire de Zoologie, 1877-78, 
i, pp. 1, et seq. 
Methods for the Preservation of Marine Organisms employed at the 
Naples Zoological Station. . [Abstract by Playfair McMurrich of 
the paper by Lo Bianco.] Am. Nat. xxiv, No. 285 (Sept., 1890), 
pp. 856-865. 
Sponges, p. 860. 
Chatin, J. Contribution k l’6tude du Noyeau chez les Spongiaires. 
C.R. cxi, No. 23 (8th Dec., 1890), p. 889. 
[ Vide infra , Anatomy, &c.] 
Dalla Torre, Y. Fauna der Insel Helgoland. Zool. Jahrb., Suppl. 
ii, 1889. 
The following Sponges occur : — Calcarea : Sycandra ciliata , Leucandra 
nivea , Ascandra complicata. Silicea, &c. : Vioa celata , Halichondria 
reticulata , H. aspera , Halisarca lobularis , H. dujardini. 
Delage, Yves. Sur le Developpement des Eponges Silicieuses et 
l’homologation des feuillets chez les Spongiaires. C.R. cx, No. 12, 
p. 654. Abstr. in J. R. Micr. Soc. 1890, pt. 3, No. 76, p. 344. 
[Vide infra , Embryology.] 
Dendy, Arthur. (1) Observations on the West Indian Chalinine 
Sponges, with Descriptions of New Species. Tr. Z. S. xii, pt. 10 
(April, 1890), pp. 349-368, pis. Iviii-lxiii. Abstr. in J. R. Micr. Soc. 
1890, pt. 3, No. 76, p. 344. 
Following species described: PachycTialina variabilis , n. sp., Nassau, 
* An asterisk prefixed to a quotation indicates that the Recorder has not seen 
the Journal or Work referred to. 
