No. X. POLYZOA. 289 



Syn. ? „ Eudesiana, M. Edw., ' Sur les Crisi^s,' &c. pi. xiv. fig. 1 . 



„ ? ,, compressa, D'Orb. 1. c. }). 756. 



„ ? Ditaxia compressa, Hagenou, 'Bryoz. Maastr.' p. 50, pi. iv. fig. 10. 



Hah. Franklin Pierce Bay, August 10, 1875; 15 

 fathoms, H. W. F. ; Greenland, 16-40 fathoms, Torel ; 

 ? Coralline Crag (fossil), S. Wood. 



Gen. 2. Tubulipora. 



1 . T. ventricosa, Bk. 



Syn. Tubulipora ventricosa, Bk. ' Q. Joiirn. M. Sc.' iii. p. 256, pi. ii. figs. 

 3-4 ; ' Brit. M. Cat.' part iii. p. 26 ; pi. xxxii. fig. 4 (sime figure). 

 „ „ (subgenus Proboscina) incrassata (var. and forma 



erecta), Smitt. 1. c. 1866, p. 402, tab. v. fig. 4. 



Hob. PVanklin Pierce Bay, August 11, 1875, 13-1 

 fathoms, H. W. F. ; Greenland (on Fucus), Dr. Sutherland. 



Suborder III. Ctenostomata. 



Fam. 1. Vesiculariad^e. 



Gren. 1 . Farella, Ehrenberg. 



1. F. arctica, n. sp. ? 



Char. Zocecia in opposite pairs at very distant intervals, 

 Zocecia, largest 0- 06 x 0-013. 



Hob. Franklin Pierce Bay, August 11, 1875. H. \V. F. 

 The Ctenostomata are represented by this single species 

 parasitic upon Bugula fruticosa. The specimens, however, 

 are so few, and so much injured and overgrown by diatoms, 

 that it is with considerable difficulty that I have been able 

 to make out even the scanty diagnosis given above, which 

 must be regarded as provisional. The zocecia are very large, 

 reaching apparently an extreme length of 0*12-13 inch by 

 0.06 inch in diameter. The Polypides have about twelve 

 tentacles and no gizzard, so far as appears in the bad state 

 of the specimens. 



VOL. II. U 



