848 



Illustrations in British Zoology 



In Taylor's London and Edinburgh Philosophical Magazi7ie 

 and Journal of Science^ the Number for May, 1834, there is 

 pubhshed an interesting communication, entitled " Notice of 

 the arrival of twenty-six summer birds of passage in the neigh- 

 bourhood of Carlisle, during the spring of 1833." — J. D. 



A Cuckoo pursued by a Meadow Pipit, — Happening to hear, 

 when passing over Mitcham Common, a few days since, the 

 full melodious note which the cuckoo often utters on the wing, 

 I looked around, and soon perceived a meadow pipit (v4'nthus 

 pratensis) chasing a cuckoo through the air, at a considerable 

 height from the ground ; following it at least a couple of hun- 

 dred yards, and attacking it repeatedly, with wonderful spirit, 

 till at length it seemed no longer able to keep up. On re- 

 turning to its nest, it probably found a new object for its 

 affections. — JS. Blyth, 



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

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

 burgh. 



21. Pleurobra'nchus plu^mula {fig. 46.) 



a, A view of the back, when the animal is in progression. bbb. Three views of the ventral 

 surface c c, Two views of the shell. All of the natural size. 



Synonymes. — Bulla pliimula Mont. Test. Brit. p. 214. t. 15. f. 9. (the 

 shell), Turt. Br. Faun. p. 168., Turt. Conch. Diet, p. 25.; Pleurobranchus 

 plumula Flem. Brit. Anim. p. 291.; Berth^lla porosa Blainv. Malacolog. 

 p.470. t.43. f.l. 



Description. — Body oval, convex dorsally, of a uniform 

 cream-yellow colour. Cloak smooth, reticulated with minute 

 clear spots, so as to appear almost porous, like a piece of fine 



