588 
ZOOLOGICAL LITEHATUKE. 
Corticium stelligerum, sp.n., Schmidt, 1. c. p. 26, Taf. 3. fig. 6, found on Caryo- 
2 )hyllia cc^spitom at Sebenico. 
Raspaiyella hrunnea, g. et sp. n., Schmidt, 1 . c. p. 25, Muggia. 
Esperia tuherosa^ sp. n., Schmidt, l.c. p. 20, Canal of Zara. 
Scopalina toxotes, sp. n., Schmidt, I, c. p. 26, Taf. 5. fig. 6, Zara. 
Crihreila degam and C, hamigera. Varieties of these species are figured by- 
Schmidt, 1. c. Taf. 6. fig. 6. 
Myxilla tridem, Sdt., = M. rosacea, Sdt., Schmidt, 1. c. p. 27. 
» Eeniera implexa, sp. u., Schmidt, 1. c. p. 27, Bay of Muggia j E. informis, 
sp. n., Schmidt, 1. c. p. 27, Bay of Muggia. 
Halichondria anhdans of Lieberkiihn contains two very distinct species of 
Sponge j these are described by Schmidt, /. c. p. 28, as Eeniera injiata and R. 
muggiana. 
Nardoa reticulum, Sdt. Kolliker, in his ^ leones IlistologicEe,’ says that 
Nardoa has no oscula j but Schmidt, /. c. p. 28, remarks their presence in this 
species, and figures them, Taf. 5. figs. 7, 8. 
Syconella quadrangidata, g. et sp. n,, Schmidt, 1. c. p. 29, Taf. 6. fig. 9. 
Schmidt arranges the genera having affinities to this one as follows : — 
JJte. The osculum is neither surrounded by a radiating crown nor capped 
on its end with a thin-skinned chimney. 
Dunstervillia. Osculum with an upright, and another almost horizontal, 
radiating crown. 
Sycon. Osculum with a simple radiating crown. 
Syconella. Osculum without a radiating crown, but on the end a thin- 
skinned chimney-like headpiece. 
New species of Sponges from Cette : — 
Spongelia nitella, Schmidt, 1. c. p. 30. 
Esperia sentinella, Schmidt, 1. c. p. 30, Taf. 6. fig. 11. 
Eenicra accommodata, Schmidt, 1. c. p. 30 j R. porrecta, Schmidt, 1. c. p. 30. 
Suberites paludum, Schmidt, I, c. p. 31, Taf. 6. fig. 12 ; S, villosus, Schmidt, 
1. c. p. 31. 
Stelletta anceps, Schmidt, /. c. p. 31. 
Ute viridis, Schmidt, 1. c. p. 32. 
Tetilla euplocamos, n. g. and sp., Schmidt, /. c. p. 40, Taf. 5. fig. 10, for a re- 
markable little Sponge received from Fr. Muller from Desterro, which appears 
to have affinities on the one side towards Tethya, and on the other towards 
Ilyalonema. 
Gkay (/. c.) forms a new family for tlie two following genera, 
which apparently belong to the Sponges : — 
Ceratella, g. n., Gray, 1. c. p. 577. Sponge irregularly dichotomously 
branched, more or less expanded on a plane from a single base j of a dark 
brown colour, of a uniform, hard, horny substance ; stem hard, dark brown, 
solid j base dilated, ratlier compressed, of a uniform rigid somewhat spongy 
texture, with a velvety surface, which is formed of an abundance of very 
minute, cylindrical, tortuous grooves ; the branches and branchlets tapering, 
formed of a very large quantity of nearly parallel, paler brown, projecting, 
horny points, divergent at the ends, and producing a spinulous surface. The 
