CLASSIFICATION, NEW GENERA AND SPECIES. 
473 
Classification, New Genera and Species, ^c. 
Siliceous Sponges, 
Gray (11) gives the following emendation of his classification of the Sili- 
ceous Sponges {cf. Zool. Rec. iv.) : — 
A. Thalassospongia *. 
1. Liospoyigia. 
I. Ceratospongia. 
a. Spongiidcs, Ceratellidm, Hh'ciniidcB, Dgsidiidf^. 
b. Chnlinidoi, VhacclliidcB, HalichondriidcB, Pohjmastiidfp. 
c. Opistho.^pongiidcc . 
II. Sitherispongia. 
Suheritidce, RaphioplioridcB, Clmiidce. 
III. Arenospongia. 
Xmospongiidm. 
2. Acantliospongia. 
IV. JIamispongia. 
Esperiida*, Desmacidoniidcs, Hamaeantliidaij GelKid<e. 
V. Coralliospongia. 
1. Pheronematidcs, Lamiginellidce. 
2 a. Euphctellidm, Hyalothaumatid(B. 
b. MacandrewiidtB, Earreidm^ PactylocaUcidcc, Aplirocallistidfe. 
c. CorhitellidfS, AsconematidcB. 
d. CarteriidcB, Axidce. 
VI. Splim’ospongia. 
1 a. Geodiidfe. 
b. Vlncospnngiid(P,. 
2 a. Tethyidcc, Donatiidcc, Tlicncidcc, LopUnrcllidcCy CusnHdfP, 
b. ChondrillidcB. 
3. Ancorinidce. 
B. Potamospongia. 
Spongillidee. 
Eulers (9) has examined the sponges described by Esper, and refers them 
as follows to now adopted (including 6 new) genera, and adds critical 
remarks on the limits of genera and families. 
Spongia (Euspongia) officinalis { = adriatica, var. quarnerensis) , cellulosa, 
agaricina, plicata, Esp. ; Cacospongia cavernosa, lamellosa, Esp. j Spongelia 
grossa, Esp.; Verongia^s^w^am {Luff aria) ) Jlabellif or mis, Esp. (Jantliella) •, 
Phyllospongia (g. n.) papyracea, Esp. ; Platychalina (g. n.) foliacea, Esp. j 
Pachychalina Jihrillosa, Esp. ; Siphonochalina tuhidosa, Esp. ; Clathria surcu- 
losa, Esp. ; Desmacidon comprcssum,frondosum, Esp. ; Scopalina ccrspcs, sp. n. 
(Cape); Rhap[h]idophlus (g. n.) cratitius, Esp.j Axinclla cannahina, verrucosa, 
ventilahra, Esp. {Phakellia') •, Raspailia Esp. j Raspaigella 
Esp.; Trikentrion muricatum, Esp.; Suberites nianus-diaboli, ? cydonium, Esp.; 
Ilomoeodictya (g. n.) digitata, Esp. {pahnata, Bow.) ; Isodictya eymiformis, 
* Pectins Thalassospongine ; and so with the other names of (necessarily 
plural) groups. — Ed. 
