INSECTS AS PESTS 



393 



skin, leaving only the golden-yellow hue from which its name is 

 derived. Various monstrosities have also been produced, espe- 

 cially the ''Telescope Fish", with eyes on short projections, and 

 a large abnormal tail-fin. It is stated that the Gold- Fish was 

 originally introduced into this country in 1691. 



Another aquarium favourite is the Paradise- Fish (Poly acanthus 

 viridi-auratus, fig. 1276), domesticated in China from very remote 



Fig. 1276. Pet Fishes, i, Gold Fish (Carassiris auratiis; 2, "Telescope" variety of same; 

 3, Paradise Fish (Polyacanthus viridi-auratus). 



times, and only known in captivity. Its golden sides are cross- 

 barred with red, and some of its fins are abnormally developed 

 (see also vol. iii, p. 427). 



The Siamese keep certain pugnacious fishes in captivity in 

 order to enjoy the sight of their combats. 



INSECTS (INSECTA) AS PETS 



Some Insects are excitable, and can easily be induced to 

 fight together. The ingenious Chinese keep various species in 

 captivity in order to enjoy these mimic combats. Their list 

 includes Mantids, Beetles, Grasshoppers, and Crickets. The 

 same curious kind of amusement is practised to some extent in 

 Italy. Nor must the evolutions of performing Fleas be forgotten. 



