324 APPENDIX. 



Family Haleciidse. 



Genus HALECIUM. 



H. BEANII, Johnston. 



ON Plate XLIV. fig. 3 an Halecium is represented which 

 was obtained by dredging off the Isle of Man, and which 

 I at one time considered a distinct species. I am now 

 inclined to regard it as only a peculiar condition of the 

 well-known H. Beanii. The capsules are for the most 

 part pyriform, but occasionally elongate, with a slight 

 depression at the summit. They are borne at the ex- 

 tremity of the lateral stem-processes, in the position 

 usually occupied by the calycles. In these particulars the 

 Isle-of-Man specimen differs from H. Beanii in its ordinary 

 condition ; and as it was thickly covered with the yellowish 

 pear-shaped capsules, it presented a very distinctive aspect. 

 The calycles, however, exhibited no peculiarities, and I 

 therefore merely direct attention to the variation in the 

 form and position of the reproductive bodies. 



SUPPLEMENT TO APPENDIX. 



Family Clavidae. 



CORDYLOPHORA LACUSTRIS. 



[ Fide page 16.] 



I HAVE been favoured by Mr. W. Madeley, of Dudley, 

 with the following additional habitats for this species : 



On a piece of an old boat in the canal at Tipton ; on an 

 old boat in the Stourbridge canal, not far from Dudley, 

 plentiful. 



