--11 



FIG. 78. Side view of male Simocephalus sima. Highly magnified. 1. J^nten- 

 2. Antennae. 3. Testis. 4. Vas deferens. 10. Hepatic 

 alum. TX Heart. 14. Shell-gland. 16. Mid-gut. 



Neck organ. 



. Side view of female Simocephalus sima, magnified to the same extent 

 Fig. 78. From Cunnington. 1. Antennules. 2. Antennae. 



3. Mandibles. 4. Maxillae. 5. 1st pair of legs. 6. 2nd pair 

 of legs. 7. 3rd pair of legs. 8. 4th pair of legs. 9. 5th pair 

 of legs. 10. Hepatic diverticulum. 11. Heart. 12. Ovary. 



13. Brood-pouch. 14. Shell-gland. 15. Brain. x6. Mid-gut. 

 17. Neck organ. , 



