CLASSIFICATION, GANOIDEI. 
87 
I. Class PIS0E8. 
A. Series TELEOSTOMI s. BRANCIIIATA. 
1. Subclass Teleostei. 
a. Order Vlectognatlii, 
h. „ Lophobranchii. 
c. „ Vediculati. 
d. ,, Hemibramliii. 
e. „ Telcoccphali (with the suborders Heterosomata, Anacan- 
thini, Acanthopteri, Percesoces, S 3 ^neutognathi, Ilaplomi, Iso- 
spondjli, Eventognathi, Gymnonoti). 
f. „ Scyphophori. 
g. ,, Nematognathi. 
h. „ Apodes. 
i. „ Opistliomi (containing MaStacembelus and Notacanthus). 
2. Subclass Ganoidei. 
a. Superorder Ilyoganoidei. 
a. Order Cycloganoidci. 
h. „ Rhomhoganoidei. 
/3. Superorder Chondroganoidei. 
c. Order Chondrostei. 
d. „ Sclachostomi. 
y. Superorder Rrachioganoidei. 
e. Order Crossopterygia. 
d. Superorder Dipnoi. 
f. Order Sirenoidei. 
B. Series* ELASMOBRANCIIII. 
TI. Class M ARSIPOBR ANCITTI. 
HI. C1«S3 LEPTOOARDIl. 
PALiEICHTHYES. 
^ GANOIDEI. 
A German translation of Dr. Liitken’s paper on Ganoids [see 
Rec. yi. pp. 125, 138], by R. v. Willemoes- Sulim, has appeared in 
' Palseontographica,^ vol. xxii. There is appended to it a post- 
script by Dr. Liitken (also printed in Vid. Medd. 1872, pp. 79- 
8l), in which he changes the position of Dijmoi to the Cy di- 
merous Crossopteri. 
Ceratodus. A condensed account of its organization by 
Dr. Gunther, in Pop. Sc. Rev. 1872, pp. 257-2GG (pi. 8G, copied 
from Phil. Trans.). Of additional matter in this paper is to be 
noticed : — 1. The parallelism of the geographical distribution 
of Sirenidoi and Osteoglossidoi ] 2. A hctcroccrcal and diphy- 
ccrcal condition of the pectoral fin of fishes is pointed out; and 
3. The homology of the tooth-bearing pterygo-palatine arch of 
Dipnoi with the upper jaw^^ of a shark is maintained. 
