1911] Chandler: A Lymphoid Structure in Lepisosteus 89 
~ 
Ss 
Y>>=23=_trilob. cbl. 
Fig. A. Dorsal aspeet of brain of Lepisosteus osseus, with myelence- 
phalie gland in situ. X10. ant. L. cb., anterior lobe of cerebrum; post. I. 
cb., posterior lobe of cerebrum; opt. I., optic lobe; trilob. cbl., trilobed cere- 
bellum; myelen. gl., myelencephalie gland; sp. ed., spinal cord. 
