ADDENDA AND CORRIGENDA. 341 



Page 138, Northia tubicola, after (b) Scotland, Lieut. Thomas, E.N., 

 add (c) Polperro, Cornwall, Laughrin ; (d) Cumbrae, Firth of Clyde, 

 D. Robertson ; (e) Falmouth, W. P. Cocks. 



Page 139, Northia conchylega, after (b) South Devon, J. Cranch, 

 add (c) Firth of Clyde, D. Robertson. 



Page 140, Lycidice Ninetta, after (6) Falmouth add (c) Polperro, 

 Cornwall, Laughrin. 



Page 141, Lycidice rufa, after (a) Falmouth add (b) Polperro, 

 Cornwall, Laughrin. 



Page 143, Lumbrineris tricolor, after (b) South Devon, J. Cranch, 

 add (c-j) Polperro, Cornwall, Laughrin. 



Page 148, Nereis brevimana, after (b) Ayrshire, P. W. Maclagan, 

 M.D., add (c) Polperro, Cornwall, Laughrin. 



Page 151, Nereis pelagica. The specimens from (a) to {e) have by 

 accident been transposed from the following species, N. diversicolor, 

 to which they belong. After {e) add (f-l) Polperro, Cornwall, 

 Laughrin. 



Page 154, Nereis diversicolor. The specimens from (a) to (e) 

 have by accident been transposed from Nereis pelagica, to which they 

 properly belong. After {e) add (/) Wick, Caithness ; {g) British coast. 

 Dr. Baird; (h) Polperro, Cornwall, Laughrin. 



Page 155, Nereis caerulea, after (b) Falmouth add (c) Falmouth, 

 W. P. Cocks. 



Page 156, Nereis fimbriata, after (d) Falmouth add (e) Polperro, 

 Cornwall, Laughrin. 



Page 158, Nereis Dumerilii, after (b) Barmouth, Merionethshire, 

 C. Stokes, add (c) Polperro, Cornwall, Laughrin. 



Page 163, Heteronereis lobulata, after (b) Falmouth add (c, d) 

 Polperro, Cornwall, Laughrin. 



Page 167, after description o/ Heteronereis margaritacea add 

 Sp. 5. Heteronereis signata. 



Heteronereis signata, Baird, Proa. Linn. Sac. 1864, tab. i. f. 1. 



Body pyramidally shaped, spotted, channeled on both dorsal and 

 ventral surfaces ; 2nd, 3rd, 4th, and 5th segments very short, the fol- 

 lowing 16 segments large, strong; the feet simple; the segments of 

 posterior portion of body small and narrow, and very crowded, the 

 feet compound ; the cirri of the anterior feet simple, not crenated. 

 Hab. British coast, on a muddy bottom. 



(a) Polperro, Cornwall, Laughrin. 



