PRENTIss — Otocyst Crustacea. 
PLATE 3. 
All Figures are from methylen-blue preparations of Palcemonetes. Anterior is 
up on plate in Figure 12. 
Fig. 10. Part of abdominal exopod showing tubes of developing tactile hairs and 
their innervation. X 125. 
Fig. 11. Peripheral nerve endings in the tactile hairs of the second maxilliped. 
x 96. 
Fig. 12. Dorsal view of antennules and brain, showing sensory neurons and cen- 
tral endings of the otocyst nerve fibres. The peripheral endings in 
the left otocyst are diagrammatic. x 30. 
