338 ADDENDA AND COBEIGENDA. 



Page 24, after Omatoplea piilchra ac^cZ Plate II. a. figs. 6, 6*. Fig. 6, 

 nat. size ; 6*, magnified. 



Page 26, Lineus murenoides, after Description, for Length 3-6" 

 read 3-6' ; and for thickness 2" read 2'". Delete Plate I., and after 

 {e) Falmouth, W. P. Cocks, add (/) Polperro, Cornwall, Laiujlirin. 



Page 27, Lineus fasciatus, delete Plate II., and after (c) Falmouth 

 add (d) Polperro, Cornwall, Laughrin. 



Page 27, Lineus viridis, after (a) Falmouth, W. P. Cocks, add 

 (b, c) Polperro, Cornwall, Laughrin. 



Page 27, Lineus albus, add (a, h, e) Polperro, Cornwall, Laughrin. 



Page 28, Meckelia annulata, after (d) Berwick Bay, Dr. Johnston, 

 add (e) Montrose, W. Bedttie. 



Page 29, after Serpentaria fusca add 

 Sp. 3. Serpentaria Beattiei. 



Lineus Beatti?ei, Gray, Proc. Zool. Soc. 1857, 210. t. 48. 



In length this worm was from 18 to 20 inches, and had the 

 faculty of dividing itself into numerous pieces. The upper portion, 

 containing the head, was the only part preserved and sent to the 

 British Museum by Mr. Beattie of Montrose. As Dr. Gray observes, 

 " the specimen is in far too imperfect a condition to describe, but I 

 think it may be provisionally named Lineus Beatticn, after its dis- 

 coverer." The fragments, in spirits, are of a dull greyish- white 

 colour, and the head exhibits " a large longitudinal mouth, opening 

 into a longitudinal cavity, which extends the whole of its length, 

 having a central, broad, longitudinal rounded ridge extending the 

 whole length of the dorsal surface." 



Query — May it not be spionymous with Serpentaria fragilis, 

 Goodsir ? 



Page 32, after EntobdeUa hippoglossi add Plate XII. figs. 1-3. 



Page 33, after description of Capsala Budolphiana add (a) From 

 the gills of the Orthagoriscus mola, Co. Galway, Copt. Bedford, R.JV. 



Page 40, Pontobdella muricata, after (A-) "Weymouth, W. Thomp- 

 son, add (J) From a Skate, London market, Mr. Olliffe ; {m) Done- 

 gal, Ireland, Earl of EnnisliJlen. 



Page 42, after Pontobdella littoralis add Plate I. figs. 4-6. 



Page 43, Piseicola geometra, after Obs. add (a) On the Trout, 

 River Wandle, J. Gould. 



Page 45, Nephehs octoculata, after (a) The "VATiiteadder, Berwick- 

 shire, Dr. Johnston, add (b) Holy Island, Dr. Johnston. 



