\<>r.\RIUM. 



17 



The shape of the globular lens is This near-sightedness may be of 

 not materially different from that of benefit to the fishes under the con- 

 the natural form, which indicates that ditions in which they are bred and 

 it is impossible for the image of a dis- reared, as in the confines of the 

 tant object formed by the lens to be aquarium and smaller breeding tank- 

 thrown on the retina at all, and so distance sight is of less value than an 

 necessarily producing a condition of optical adjustment that will clearly de- 

 extreme near-sightedness, an optical fine nearby objects. 



DORSAL VIEW OF THE CHINESE CELESTIAL GOLDFISH 



EYE-FORMATIONS OF CHINESE AND COREAN GOLDFISHES. 



1. Eyes of the common goldfishes 



2. Eyes of the Dragon-eyed goldfish as spheres 



3. Eyes of the Dragon-eyed goldfishes, as ovoids 



4. Eyes of the Dragon-eyed goldfishes, as truncated cones 



5. Eyes of the Dragon-eyed goldfishes, as segmented spheres 



S. Eyes of the Dragon-eyed goldfishes, the Celestial pupils turned 

 upward 



adjustment for very near objects. 1 nese highly developed goldfishes all 



Therefore, the name "Telescope" is a have defective eyesight, but others less 



misnomer; the eye is distinctly myopic abnormally developed have a consid- 



and short-sighted and not hyper- erable range of vision and an eye for- 



metropic or far-sighted, as required of mation of some magnifying power as 



an optical organ having telescopic compared with the human sight. They 



capacity. distinguish objects in the water that 



