Ceylon Marine Entozoa. 135 

 Plan aria Cerebralis. Kel \J 



Rudimentary tentacles anterior, formed by two folds of the 

 margin. Upper surface of a yellowish brown colour and mi- 

 nutely streaked with fine wavy brown lines ; border lined 

 with a black line, streaked with white. Beneath, of a beau- 

 tiful salmon colour. Mouth large, placed on the anterior 

 third of lower part of body ; the lips are white. 



This is the largest species observed, nearly 3 \ inches long, 

 and 3 inches broad. Ova greenish white. 



Planaria Violacjea. Kel * 



Tentacles as in last species. Upper surface violet purple 

 colour, edged with bright yellow. Median line yellowish ; 

 under parts rose coloured. 



About 1 J inch long, and f inch broad. This beautiful 

 species, in a quiescent state, resembles some variety of pansy. 

 Ova yellow. 



Planaria Viridis. Kel 



Tentacles folded ; green, spotted brown ; edge dark grizzly 

 brown. Under parts paler. 

 About inch long. 



Planaria Arm at a. Kel. ^ 



Tentacles folded, but more distinctly formed. Upper sur- 

 face of a dark purple colour, covered with short, black spines. 

 Beneath pale purple, smooth. About 1 J inch long, and nearly 

 inch broad. 



