PLATE 4. 



Fig. 1. Neomenia verrilli. Section tlirough jienial gland and junction of dorsal and ventral limbs 

 of coelomoduct. X 85. 



2. Section through posterior end of body along line E of fig. 1, pi. 3. 

 Section through pharynx along line B of fig. 4, pi. 3. 

 Section through pharynx along line C of fig. 4, pi. 3. 

 Cloacal fold.s and attached glands. X 215. 

 Section through brain along line A of fig. 4, p\. 3. 



Section through distal end of penial spine, sheath, and attached muscles. X 29. 

 Proneomenia acuminata. Section through middle of heart. X 85. . 

 Teeth to left of mid line. 



Section through pharynx (ph) at level of subradular organ. 

 Section along line B of fig. 1, pi. 5. 

 Section along line E of fig. 5. pi. 5. 



