THE COD FAMILY 



]03 



PLATE 20. 



A\V 



ALL 



C.LM 

 SSL. 



Top row. — The brains of three deep water fish, left to right — Hake, Ling, Molva 

 elongata. Below. — Three drawings to scale of M. elongata. To left — Dorsal 

 and lateral view natural size. To right. — Twice natural size. Note the very 

 prominent acoustic tubercles in M. elongata. P.E.B. — ^Primitive end-brain. 

 O.L. — Optic lobes. C.L.M. — Cerebellum. A.T. — Acoustic tubercles. S.S.L. 

 — Somatic-sensory lobes. A.L.L. — Acustico-lateralis lobe. L.INF. — Lobus 

 inferior. 



