| In the fifth figure the color of the darkest fly is due to a factor called ebony, which is an allelomorph of sooty. |
| When this mutant first appeared its similarity to arc led us to suspect that it might be arc itself or an allelomorph of arc. |
| This eye color, which is an allelomorph of white, is also interesting because in the female the color is deeper than in the male. |
| Since eosin is an allelomorph of cherry, it should be expected to give with sable the same cross-over value as did cherry. |
| If each is produced by a loss it must be a different loss that acts as an allelomorph to the other loss. |
| In such cases each member acts as the allelomorph of any other member, and only two can occur in any one female, and only one in any male. |
