686 
ZOOLOGICAL LITERATURE. 
Corticate, 
Placospongia melohesioides^ Gray, 1867, is, according to Bowerbank, /. c. 
p. 132, Geodia carinatay Bbk. Phil. Trans. 1858. 
Hallsarcid(B. 
Ilalisarca. Dr. Bowerbank says, 1. c. p. 137, that in every specimen that 
he has as yet seen of the Sponge so designated he has, by the aid of Canada 
balsam, detected minute siliceous spicules in situ j but on this question see 
the elaborate and conclusive researches of Oscar Schmidt, 1. c. p. 24. 
Mr. W. Andrews places on record the occurrence in Ireland of one or two 
Sponges, the more important of which are Pachymatis?na johnstonia, Hali- 
chondria (^Dictyocylindrus') hispidus, and Raphirus griffithsi(s. In mentioning 
the latter species, the author falls into the curious mistake of confounding 
it with the Cliona celata of Grant. Ann. & Mag. Nat. Hist. vol. i. 18G8, 
pp. 307-308. 
We here give a summary of the contents of the 3rd Supple- 
ment to Oscar Schmidt^s ^Sponges of the Adriatic ^ — 
Algierian Sponges, New genera and species : — 
Sarcomella, g. n., Schmidt, 1. c. p. 1. Gelatinous, reminding one of the 
substance of the Acalephee, containing simple needle-like spicules. >S. me- 
dusa, sp. n., Schmidt, I, c. p. 1. 
Chondrosia, Nardo,=6'««nmmm, Sdt. C. pleheja, sp. n., Schmidt, 1. c. p. 1. 
Corticium plicaium, sp. n., Schmidt, /. c. p. 2, Taf. 3. fig. 11. 
Osculma, g. n., Schmidt, 1. c. p. 2. Oscula very numerous, either plain in 
outline or with raised walls, or with these walls fenestrated. The consistence 
of the sponge is the same as in Chondrilla. O. polystomella, sp. n., Schmidt, 
/.c. p.3,Taf.l. 
Euspongia virgultosa, sp. n., Schmidt, 1. c. p. 4. 
Cacospongia aspergillum, sp. n., Schmidt, 1. c. p. 95, Taf. 2. fig. 1. 
Ilircinia pipetta, sp. n., Schmidt, 1 . c. p. 6, Taf. 2. fig. 2 j H. lingua, sp. n., 
Schmidt, 1. c. p. 6, Taf. 2. fig. 3. 
Siphonochalina, g. n., Schmidt, 1. c. p. 7. Branched or unbranched tubes. 
The outer surface solid, while between the somewhat projecting ends of the 
radiating bundles a fine dense network is spread out. S. coriacea, sp. n., 
Schmidt, 1. c. p. 7, Taf. 2. fig. 4. 
Chalimda, g. n., Schmidt, 1. c, p. 7. External appearance and general tex- 
ture of a true Reniera, but with a keratose framework, which completely 
covers over a great portion of the bundles. C. renieroides, sp. n., Schmidt, 
/. c. p. 7 ; C. membranacea, sp. n., Schmidt, 1. c. p. 8. 
Sclerochalma, g. n., Schmidt, 1. c. p. 8. Appearance that of Siphonochalina, 
but with a coarse and irregular network, somewhat in proportion as Caco- 
spongia is to Euspongia. S. asterigena, sp. n., Schmidt, 1. c. p. 8, Taf. 2. 
fig. 5. 
Pachychalina, g. n., Schmidt, 1. c. p. 8. Bundles made up of many rows of 
spicules, which are fast bound together by keratose material. P. rustica, 
sp. n., Schmidt, 1. c, p. 8, Taf. 2. fig. 0. 
Clathria morisca, sp. n., Schmidt, 1. o. p. 0, Taf. 2. fig. 7. 
Axinella salicina, sp. n., Schmidt, 1. c. p. 9. 
