Ceylon Nudibr and date Molluscs, and Zoophytes. 103 



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

 of life found there. 



Doris Luteola. Kel. 



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

 yellowish, and shaded with darker yellow. Dorsal tentacles 

 long, black, la mediated apex. Oral tentacles short, white. 

 Branchial plumes long, bipinnate ; greenish. Foot white, 

 shorter than mantle. 



This elegant species is found in shallow water; spawns in 

 October. Ova light green, in 2 narrow tape-like con- 

 volutions. 



Doris Viperina. Kel. \/ 



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

 vered 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 

 purplish spots, a purplish line runs near the edge ; border trans- 

 versely streaked. Dorsal tentacles, greenish, long, white, 

 slightly truncated, laminated clavate tops. Oral tentacles 

 white; long, pointed. Branchial plumes 6; short, broad, 

 bipinnate; of a greenish white colour. Foot oblong, entire- 

 ly covered by the broad oval mantle ; white, spotted with 

 smaller purplish spots than those seen on the under surface 

 of mantle. 



Found in deep water, near French Battery. 



Doris Atrata. Kel. 



Body half an inch long, and ^ inch broad ; ovate, convex ; 

 of a smoky black colour. Mantle broad, when expanded 



