376 



Eolidia papillbsa. 



but it may, I think, with equal propriety (if it, indeed, be not 

 hence already derived), attach to it from a very odd way it 

 has of jerking its body up and down with a dipping motion, 

 on its first alighting on a stone. — Lendal, York, Nov. 10. 1834. 



\On the Dipper, information has been contributed, besides 

 in the instance above, in II. 301. 400., V. 734., VII. 183. 

 540—543., VIII. 358.] 



Art. V. Illustrations in British Zoology. By George John- 

 ston, M.D., Fellow of the Royal College of Surgeons of Edin- 

 burgh. 



38. Eoli'dia papilloma. (Jig. 35.) 



Eohdia papillosa, natural size : a, upper side ; b, under side ; c, a portion of the spawn, of the 

 natural size ; d, the same magnified. e, Eolidia despecta. 



Synonymes. — " Doris Bast., Opus., subs. i. 81. tab. 10. fig. 1.," copied 

 into Encyclop. Method., pi. 82. fig. 12. 2>imax papillosus Lin., Syst., 

 1082. Doris papilldsa Montagu, in Lin. Trans., xi. 16. pi. 4. fig. 3. D. 

 vermigera Turt., Brit. Faun., 133. Tritdnia papillosa Fleming, in Edin. 

 Encyclop., xiv. 619. Eolida papillosa Flem., Brit. Anim., 285. 



Description. — Body, when fully extended, between 2 in. 

 and 3 in. in length, and more than half an inch in breadth ; 

 limaciform, slightly narrowed at the tail ; of a freckled pur- 

 plish-brown colour, with grey or cream-coloured shadings, 

 the brown disposed in some places in darker patches. Middle 

 of the back naked ; the smooth space dividing the branchial 



