Caption
The phenotype of the ssa allele.
Dorsal aspect.
Oriented anterior up.
After ssa: spineless-aristapedia on page 667 from Lindsley and Zimm (1992).
D. L. Lindsley and G. G. Zimm. The Genome of Drosophila melanogaster. Academic Press,
San Diego, CA, 1992. ISBN 0124509908.