194 CAMPANULINID^E. 



polypites long, cylindrical, and with a conical proboscis ; re- 

 production by means affixed sporosacs, which (in the female) 

 become extracapsular before the escape of the planules. 



THIS genus is constituted for the Campanularia lacerata 

 (Johnston), which is identical with Campanulina, so far as 

 the trophosome is concerned, but differs from it widely in its 

 mode of reproduction. Allman ranks it along with C.syringa 

 (Johnston) under the genus Calycella ; but though these 

 two forms are similar in some respects, their calycles are 

 formed upon a different type, those of C. syringa allying it 

 with Lafoea, and those of C. lacerata with Campanulina. 



The operculum of the present genus differs from that of 

 Calycella ; it is nothing more than the cleft border of the 

 hydrotheca, which collapses and forms a kind of roof. In 

 Calycella it consists of a true lid a turreted covering or a 

 folded membrane. There is indeed a striking dissimilarity 

 between the hyaline, ovato-conic calycles of Opercularella, 

 and the long, tubular calycles, of somewhat dense texture, 

 which distinguish the true CalycellcE ; and the points 

 which separate the present genus from the Lafoeidcs 

 connect it with Campanulina. I believe, therefore, that 

 the natural relationships will be best represented on the 

 whole by the arrangement which I have adopted. 



O. LACERATA, Johnston. 



CAMPANULARIA LACERATA, Johns? . B. Z. Ill, pi. xxviii. fig. 3; Van Beneden, 

 Faune Litt, de Belgique, Polypes, 159, pi. xv. fig. 5-13. 



CAPSULARIA LACERATA, Gray, Cat. B. M. Eacliata, 87. 



LAOMEDEA LACERATA, Hincks, Ann. N. H. (2nd ser.) x. 86; T. 8. Wright, 

 Edinb. N. P. Journ. (N. S.)for Jan. 1859, pi. iii. 



WRIGIITIA LACEKATA, Agassiz, N. H. II. S. iv. 354. 



CALYCELLA LACERATA, Allman, Ann. N. H. for May 1864, 31. 



Plate XXXIX. fig. 1. 

 STEM erect, slender, slightly flexuous, annulated throughout, 



