SENSE-ORGANS OF THE INTEGUMENT 251 



AE JE SZ StZ 



FIG. 184, A. LONGITUDINAL VERTICAL SECTION OF THE SKIN AND A LATERAL 

 LINE ORGAN OF Triton cristatm DURING THE BREEDING SEASON, WHEN 

 THE ANIMAL LIVES IN THE WATER. (After Maurer.) 



^4 E and JE, external and internal layers of epiderm abutting against the sensory 

 organs; BG, blood-vessel; SN, nerve; SZ, sensory cells; StZ, . supporting 

 cells. 



B. ISOLATED SUPPORTING (StZ) AND SENSORY (SZ) CELLS FROM A LATERAL 

 LINE ORGAN OF TRITON. 



C. VERTICAL SECTION THROUGH THE LATERAL CANAL OF Amm ccdva. 

 (After Allis ; slightly modified. ) 



Nl, lateral nerve, and N, branches to sensory organs ; Oe, apertures of the lateral 

 canal to the exterior ; S, scales ; SO, sensory organs in the lateral canal. 



