CHAP. V.] 
CLASSIFICATION. 
101 
Order I. — PSEUDOPHIDIA. 
Fam. 
1. Caeciliadee Ceecilia. 
Order II.— BATRACHIA URODELA. 
2. Sirenidee . . . 
3. Proteidte ... 
4. Amphiumidee 
5. Menoponiidte 
6. Salamandridse 
Siren. 
Proteus. 
Amphiuma. 
Giant Salamanders. 
Salamanders and Newts. 
Order III. BATRACHIA ANOURA. 
Fam. 
7. Rhinophrynidse ' 
Fam. 
16. Pelodryadee ... D 
8. Phryniscidse . . . 
17. Hylidee V 
9. Hylaplesidee . . . 
- Toads. 
18. Polypedatidse ... J 
10. Bufonidee 
19. Ranidee } 
11. Xenorhinidse ... 
2D. Discoglossidee ... j 
12. Engystomidse ... , 
21. Pipidee ) 
13. Bom binator idee | 
1 
22. Ductylethridee ... J 
14. Plectromantidee J 
15. Alytidee J 
- Frogs. 
j- Tree Frogs. 
Frogs. 
Toads. 
FISHES. 
These are arranged according to the classification of Dr. 
Gunther, whose great work “ The British Museum Catalogue of 
Fishes,” has furnished almost all the material for our account 
of the distribution of the class. 
In that work all existing fishes are arranged in six sub-classes 
and thirteen orders. A study of the extraordinary Ceratodus 
from Australia has induced Dr. Gunther to unite three of his 
sub-classes ; but as his catalogue will long remain a handbook 
for every student of fishes, it seems better to follow the arrange- 
ment there given, indicating his later views by bracketing 
together the groups he now thinks should be united. 
