91 
PISCES. 
t t Scapular arch free behind the cranium. 
0. Praeoperculum. 
12. Order Holostomi (S 3 onbranchi). 
13. „ EnchelycepTiali (Qongridse, Anguillidse, Gymnothoracidas). 
00. Praooperculum wanting or rudimental. 
14. Order Colocephali (Mursenae). 
C. Tribe Physoclysti. 
* Scapular arch not suspended from the cranium. 
16. Order Opisthomi (Mastacembelidse). 
** Scapular arch suspended from the cranium, 
t Venti’al fins abdominal. 
16. Order Percesoces (Ophiocephalidae, Mugilidae, Atherinidae). 
17. „ Synentognathi (Scombresocidae). 
18. „ Ilemihranchi (Gasterosteidae, Fistulariidae, Centriscidae, 
Amphisitidae). 
19. „ Lophohranchi. 
tt Ventral fins thoracic or jugular. 
20. Order Pediculati (Antennariidae, Lophiidae). 
21. „ Heterosomata (Floimders). 
22. „ Plectognathi. 
23. „ Percomorphi (Perch). 
a. Anacanihini (Gadidae and Macruridae). 
b. Haplodoci (Batrachidae). 
c. Scyphohranchii (Uranoscopidas, Gobiidae, Blenniidae, Go- 
biesocidae; Cottidae). 
d. Epelasmia (Acronuridae, Chaetodontidae). 
e. Phegnopteri (Polynemidae). 
f. Bistegi (Scombridae, Xiphiadidae, Trichiuridae, Berycidae, 
Percidae, Sparidae, Sciaenidae, Pristipomatidas, Trigiidae, 
Sillaginidae, Oarangidae, Echeneidae, Gerreidae, Iletero- 
gnathidao). 
g. Labynnthioi. 
24. Order Pharyngognathi (Embiotocidaa, Chromididae, Labridao, 
Scaridae). 
PALiBICHTHYES. 
GANOIDEI. 
// Dr. Lutken^s paper on the classification and limits of Ganoids 
1 [see Zool. Rec. vi. pp. 125, 138] has been published in a trans- 
’ lation in Ann. & Mag. N. H. 1871, vii. pp. 329-339. 
? I 
\y ' I Ceratodiis. Dr. Gunther’s researches into the structure of this fish are con- 
' i tained in the following papers : — 
i i 1. Description of Ceratodus, a genus of Ganoid fishes recently discovered 
^'\ in Queensland, Australia. Proc. Koy. Soc. 1871, March 16, pp. 377-379 
\ (Abstract of the Memoir No. 4). 
i; 2. Ceratodus and its place in the system. A. & M. Nat. Hist. 1871, vii. 
pp. 222-227, with two woodcuts (paddle of Ceratodus and Adpenser). 
vA 3. The new Ganoid Fish {Ceratodus) recently discovered in Queensland, 
