No. 0,-1856-8.] CEYLON HUBXBRAtfOHXATA, &©, 



m 



from under the posterior termination of dorsal ridge. In 

 some specimens there is a large pitted protuberance on centre 

 of ridge. Dorsal tentacles with large granular sheaths ; 

 apex conical, lamellated ; of a pale green colour. Oral 

 tentacles white. Foot small, narrow. Branchial plumes small, 

 bi-pinnated. 



This curiously formed Doris resembles a piece of bone, or 

 piece of worm-eaten white stone. Its habits are those of the 

 other Doridce. 



Doris Constantly. Kel. 



Coriaceous. Body f inch long ; light yellow. Mantle 

 yellowish-brown, granular ; dark brown spots on edge. Dorsal 

 tentacles yellow, conical, swollen at the apex, laminated ; tip 

 produced, white. Oral tentacles small, linear. Branchial plumes 

 whitish, five or six, small, bi-pinnate. Foot small, covered by the 

 mantle. Under parts yellowish. 



I have only seen one of this species, which lived for many 

 months in a vivarium. It came nightly to one of the oysters, 

 and apparently fed on the back of the shells, upon the atoms of 

 life found there. 



DORIS LUTEOLA. Kel. 



Semi-gelatinous. Body f inch long. Mantle granular, 

 yellowish, and shaded with darker yellow. Dorsal tentacles 

 long, black, lamellated apex. Oral tentacles short, white. 

 Branchial plumes long, bi-pinnate, greenish. Foot white, 

 shorter than mantle. 



This elegant species is found in shallow water ; spawns in 

 October, Ova light green, in two narrow tape-like convolutions, 



Doris viperina. Kel. 



Body 2 inches long ; white. Mantle coriaceous, oval ; 

 covered with short spinous tubercles, of a grey colour ; and 

 beautifully spotted with dark grey and purplish brown spots 

 having a blueish shade. Under surface* of mantle white, with 



