602 MAYNARD M. METCALF, Notes on the morphology of the Tunicata. 



Fig. 89. Three cells from the ciliated funnel of lasis cordiformis- 

 sonaria. 1) A ciliated cell with its cilium. X about 350 diameters. 

 2) An elongated, probably sensory, cell from the ciliated part of the 

 epithelium of the funnel. More highly magnified. 3) Two cells, prob- 

 ably sensory, from the non-ciliated epithelium of the funnel. X about 

 900 diameters. 



Fig. 90. Two pigment cells from the eye of lasis cordiformis- 

 0Onaria. X about 50 diameters. 



Fig. 91. Three cells and a fibre from the ganglion oi lasis cordi- 

 formis-sonaria. 1) A large cell from the horizontal zone of large cells 

 at the base of the nerves. X about 350 diameters. 2) A small cell 

 from the periphery of the ganglion. X about 350 diameters. 3) A 

 cell from the periphery of the ganglion intermediate in size between 

 1 and 2. 4) A varicose fibre from the core of the ganglion. Highly 

 magnified. 



