wwe 
eS Oe gs Q aes ‘¢ 
a NS ABORT 
64 
shesetys 
ge EAE 
soot J 
7 So efe, ve 
Ss Ss 7 
Figs. 61-68. — Mucous canals (lateral-line organs). 61. Chlamydoselache, groove-like 
lateral line. (After GARMAN.) 62. Plan of lateral line of sharks, longitudinal section, 
63. Plan of sensory end buds (lateral line). 64, Sensory tracts of head of larval Amia. — 
65. Surface openings of tubules of sensory tracts of head of adult Amia, 66. Ramification — 
of sensory tubules in dermal plate of Amia. Se Cycloid scales of Amia, showing the © 
openings of the tubules of the lateral line. 68. Cycloid scale of the lateral line of Amia, — 
ee course of the sensory tubule. (Figs. 64-68 after ALLIS.) bs 
N. Nerve supply. S. Sensory tissue. * Denotes an outer opening; -» the direction 
of an incoming stimulus, 
50 
