270 Fresh Water Aquarium 



produce normal offspring and vice versa. 

 We had an interesting experience with a 

 large female Axolotl larva, imported by Mr. 

 Eggeling with many smaller specimens dur- 

 ing the month of February 1907. Shortly 

 after its arrival the female oviposited freely, 

 the eggs being several hundred in number. 

 They resembled ordinary frog spawn in 

 shape and appearance, but were not massed 

 together in the form of a ball. After a few 

 days the embryos commenced to expand 

 and to show life, and after about ten days 

 the little larvae left their glassy shelter and 

 swam freely about in the water. They 

 showed the feathery gills very plainly but 

 there was no sign of legs. In spite of the 

 greatest care, the development of our larvae 

 is exceedingly slow, but apparently they are 

 thriving as well as can be expected, although 

 it is as yet too early to form any conclusion 

 as to our success in the raising of the Ax- 

 olotl from spawn, and within the limited 

 confines of the aquarium. 



