[22 Dr. Johnston on Scottish Mollusca. 



Brit, Anim, 286. — Doris auriculata? Mull. Zool. Dan. Prod. 229. Turt. 

 (inul. iv. 78. — Tritonia auriculata? Hose. Vers.i. 10G. 

 Hob, Among corallinea in deep water. Coast of Berwickshire, frequent* 



DESC. Body hall' an inch long, limaciform, truncate in front, 

 gradually tapered to a point behind, of a white colour some- 

 times tinted with rose-red. Tentacula four, equal or nearly 

 so, conical, rather long, the posterior pair wrinkled. Eyes mi- 

 nute, one at the base of each dorsal tcntaculum, and before 

 these organs there is a dusky spot (sometimes scarcely visible), 

 produced by the opacity of the oral apparatus, which consists 

 of a pair of large corneous jaws and a filiform spinous tongue. 

 Bronchia numerous, elliptic-oblong, round, arranged in three 

 or four imperfect rows on each side, sometimes continuous, or 

 divided at intervals in other specimens into four companies or 

 patches, the first separated by a distinct naked space from the 

 second, the others almost coalescing ; they are of a line scarlet 

 colour, with white apices which appear to be perforated, and 

 can be protruded into a conical point. Foot watery-white, 

 enlarged and rounded in front, where the corners are produced 

 into acute angular points. 



A more extended experience in the examination of these 

 animals has convinced me that E. rufibranchialis and Emble- 

 toni are the same species ; and I much suspect that this will 

 be found identical with the Doris jjedata of Montagu, though 

 his figure represents the branchiae collected in separate bundles 

 more distinctly than I have ever observed them to be. The 

 colour is variable, either white and opake or almost transpa- 

 rent, or tinted with rose-red, or freckled with brown ; and the 

 branchiae are sometimes reddish-brown, rose-coloured or scarlet 

 on the upper part, the tips only being white. It is a beautiful 

 species, and apparently abundant in our seas. 



4. E. purpurascens, " five bundles of branchiae on each side ; 

 tentacula linear." Fleming, 



Eolida purpurascens, Flem. Brit. Anim. 285. Flan. Phil. Zool. ii. 470. 



pi. w.jig. 2. 

 Hub. " Frith of Tay," Dr. Fleming. 



Desc. " Length about an inch, slender, pointed behind, 

 rounded in front, of a pink colour. Anteal tentacula shorter 



