= 5 - 



laid eggs Is yellowish and becomes darker and darker during 

 the cours of development. The egg will hatch out between 36 

 to i}.8 hours. The yolk sac will be absorbed within 3 to 7 days. 



GROWTH . 



The followihgs are records of sizes and weights of the- 

 fish. 



The fish is not yet found over the' length of 2[|..5 centi- 

 metres, 



EXTERNAL SEXUAL CHARiCTERS . 



Pla- salid offers Itself conveniently to us in displaying 

 the difference in its external sexual characters between male 

 and female. These characters help us a great deal in the pond 

 cultivation work. 



The dersal fin of the male is long and pointed and ex- 

 tends to of' a little over the base of the caudal pedvincle, 

 while that of the female is shorter and rounded, and does not 

 reach the base of the caudal peduncle. ' ,. 



MANAGEMENT OP PISH»PONDS. ■ 



* — : — 



Pish"^px)nds- may be • constructed in any shape , but the rec- 

 tangular shape- is. 'thought' to be appropriate", as conven^ieiices 

 in taking;^ care of/ in looking- after : the fish, and in harvest- 



