stage4-6 |   
  
  | yolk nuclei
| | degraded ventrally. note basal localization in proctodeum 12035.jpe |
stage7-8 |   | trunk mesoderm anlage hindgut anlage
| | expression in vitellophages continues |
stage11-12 |   
  
  
  
  
 | visceral muscle primordium somatic muscle primordium hindgut proper primordium dorsal epidermis primordium ventral epidermis primordium
| | mesodermal crests.
Most likely visceral mesoderm; segmental stripes look like somatic muscle precursors. |