102 Description of New and Little known Species of 



nearly throughout, of a pellucid pinkish white colour, which 

 hue it retains till dawn, when gradually it assumes its 

 brilliant red diurnal costume. Spawns in the months of May 

 and June ; ova deposited in 3 or 4 large, white, ribbon-like 

 convolutions. 



Doris Osseosa. Kei 



Body one inch long. Mantle hard, cartilaginous, granular 

 and pitted ; granules of a whitish colour ; on the median line 

 is a narrow ridge extending from base of tentacles to bran- 

 chial plumes, which are 4 or 5 in number, emerging hori- 

 zontally 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 ten- 

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

 bipinnated. 



This curiously formed Doris resembles a piece of bone, or 

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

 other Doridae. 



Doris Constantia. Kei 



Coriaceous. Body j inch long; light yellow. Mantle 

 yellowish brown, granular; dark brown spots on edge. 

 Dorsal tentacles yellow, conical, swollen at the apex, lami- 

 nated ; tip produced, white. Oral tentacles small, linear. 

 Branchial plumes whitish, 5 or 6, small, bipinnate. 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, 



