No. 9.— 1856-8.] NEW CEYLON NUDIBRANCHIATA, &C. Ill 



Pleurobranchus Zeylanicus. Kel. 



Pale yellow, splashed with darker yellow and brown, and 

 minutely spotted with rusty-brown. 

 About 2 inches long. 

 Rare ; found in Rock bay. 



Pleubobranchus purpureus. Kel. 



Deep reddish-purple Mantle very dark-purple, and spotted 

 with still darker purple. There is a bright white zig-zag line 

 on each side of the back of some large specimens. Length 

 nearly 6 inches ; 4 inches broad. The young is of a lighter 

 .purple, and may be mistaken for another species. 

 Found in deep water, Trine oma lie. 



