Mahmoud S. Sirag1*, Effat L. El Sayed2, Mahmoud M. Hussein3, Khalid A. El-Nesr1, Mahmoud B. El-Begawey1
Reem R. Tahon, Nora A. Shaker*
...ed of bilateral ovaries, oviducts, seminal receptacles, in addition to single vagina and gonopore, while the male reproductive system consisted of a pair of testes, vas deferens, and gonopods. The stomach was a complex structure whose walls bore calcareous ossicles. It was divided into the cardiac stomach with four ossicles: unpaired mesocardiac, paired pterocardiac, paired lateral zygocardiac, and the unpaired urocardiac ossicle; and the pyloric stomach, whic...
