THE ORIGIN OF GYNANDROMORPHS. 



71 



No. G. May 1914. T. H. Morgan. Text-figure CO (diagram). 



The ancestry is unknown. The gynandromorph was mainly female. The 

 fly was gray with red eyes. There were no sex-combs and the wings were 

 equal in length. The tip of the abdomen had male banding. A pair of ovaries 

 were seen through the body-wall and eggs were found in section. 



No. N. September 1916. T. H. Morgan. Text-figure 61 (diagram). 



Parentage. — The ancestry is uncertain; probably the gynandromorph came 

 from the notch stock. If so, the mother carried notch in one X and eosin 

 in the other, and the father was eosin. 



Description. — The gynandromorph was largely male. The entire abdomen, 

 the right half of thorax, with wing and legs, were male. The division 



Text-figure 58. 



Text-figure 59. 



Text-figure 60. 



between male and female in the head ran through the right eye, which was 

 light eosin (male) below and dark eosin (female) on the dorsal half. 



No. O. January 1912. Text-figure 62. 



. The ancestry not recorded. It had one red eye (right) and one white eye 

 with a red fleck in it (left). On the left side there was a sex-comb. The 

 wings were equal in length and apparently female. The abdomen and 

 genitalia were entirely female. Poorly developed eggs were seen in section. 



No. P. December 1913. Text-figure 63. 



The ancestry of this gynandromorph is not recorded. It has a sex-comb 

 and short wing on the right side. The abdomen was mostly female, but 

 showed some male parts in the genitalia. 



