File:Wilson et al 1956 fig 2.jpg

Summary
Figure 2. Worker proventriculus of Aneuretus simoni. A. cuticular frawork with musculature removed. B, longitudinal section through interplicary plate and portal quadrant, showing musculature. Bl., bulb; c. m., circular muscles; cp., cupola; Cr., crop; interpl., interplicary plate; l. and m. 3, longitudinal muscles; M. G., midgut; pl., plica; pt., portal; qd., cupolar quadrant; st. rlv., stomadaeal valve.

Copyright The President and Fellows of Harvard College

Wilson, E. O., T. Eisner, G. C. Wheeler, and J. Wheeler. 1956. Aneuretus simoni Emery, a major link in ant evolution. Bulletin of the Museum of Comparative Zoology at Harvard College. 115:81-99.