No. 9. — 1856-8. J new ceylon nudibhanchiata, &o, 109 



taking within its circuit the dorsal tentacles and anal orifice ; 

 two other lines run parallel to this all round the mantle ; the 

 outer one narrowest. Dorsal tentacles large, conical, pointed ; 

 circularly laminated at the upper half, which is of a black 

 colour. The two oral tentacles small, black. Foot whitish, 

 notched in front ; the blackish viscera seen through. Branchiae 

 whitish on sides of the body except in front. Anal opening 

 on a black coloured tube, behind which there are four or five 

 large tubercles of the same form as those on the other parts of 

 mantle. Length 1 inch ; J inch broad. 



Very rare. 



Genus. Diphyllidia. Cm. 

 Syn. Linguella. Blain. 



Animal oblong ; mantle ample ; gills limited to the hinder 

 two-thirds of the body ; head with minute tentacles and a lobe- 

 like veil ; vent at the right side, behind the reproductive 

 orifices? lingual teeth 30. 1. 30, 



Diphyllidia foemosa, Eel 



Body pink. Mantle leaf-like ; dark-purple, with purplish 

 black shades ; edge yellow, streaked longitudinally with golden 

 yellow, broad lines alternated with very delicate narrow ones. 

 Veil purple-black, except the anterior edge ; beneath, of a 

 lively pink colour. Foot pink, grooved in the median line of 

 posterior half. Branchiae buff ; a whitish spot on anterior third 

 of plumes. Dorsal tentacles emerging through notches on 

 anterior edge of mantle ; tentacles red with blackish tips and 

 sides. No oral tentacle. Length 2h inches, 1J inch broad. 



This very beautiful species is found in deep water. It 

 occasionally buries itself in sand, with only the head and 

 tentacles exposed, and lies for hours in this position. 



