- 
202 J THE AUSTRALIAN NATURALIST. 
Tadpoles are excellent scavengers. If a tank has become too- 
much overgrown with confervyoids, a handful of tadpoles will 
clean it up in a very short space of time. 
How often shall I feed my fish? is the question asked. Books 
tell you two or three times a week. I feed my fish every day, 
sometimes two and three times. A. fish is much like a man, you 
reach his heart through his’ stomach. I make chums of my fish: 
Whenever they ask for food they get it. When I enter my den 
in the morning there are quite a thousand fish asking for food, 
and they get it. 
List of Irishes. 
Australia— 
Pseudomugil signifer. 
Carassiops compressus. 
Carassiops galii. 
Krefftius adspersus. 
Melanotaenia nigrans. 
Ainbassis agiassizi. 
Galaxias. 
Asia— 
Macropodus yiridi auratus. 
Oryzias latipes. 
Betta pugnax. 
Ctenops vittatus. 
A cyprinoid. 
Misgurnus anguillicaudatus. 
Anabas scandens. 
America— 
Xiphophorus helleri, Mexico. 
Lebistes reticulatus, Barbados. 
Gambusia affinis, Southern U.S.A. 
Gambusia holbrooki, Southern U.S.A. 
Lepomis pallidus, U.S.A. : 
Jordanella floridae, Florida. 
Limia caudofasciata, Barbados. 
Hight of the exotie are new to Australia. 
NOTE By EDITOR.—Mr. Finckh’s lecture was illustrated with 
a large series of beautiful lantern slides from photos taken by 
himself in his Aquarium. Further information can be gleaned 
from the report on the excursion to Mr. Finckh’s grounds, Aust. 
Nat. Vol. iv., p. 152. 
