BRITISH ZOOPHYTES. 225 



Fleming says that tlie " branches are straight, stiff, 

 and brittle, the cells are protuberant dorsally, and their 

 rounded top is nearly free, projecting laterally, giving 

 the edge a remarkably jagged outline ; and the pearly 

 ovaria are rounded." A prominent feature is the 

 curious vibraculum, which is long and toothed, and 

 springs from a large grooved vibracular cell. This 

 species possesses avicularia, and each cell is armed 

 with three spines on the upper margin. 



2. C. BoRYi, Audouin. 



Crisia Boryi (^Audouin), Cellularia Hookeri {Flem.), 

 Selbia zelanica (Gray), Caberea zelanica (Bush). 



Hab. : Torquay (Hoolier), Herm, Budleigh-Salterton 

 (Hincks), Channel Islands {A. M. N.). " Essentially a 

 southern form." 



This species is much smaller than the preceding, the 

 height being about ^ inch. The vibracula are long 

 and serrated, and each cell has a somewhat oval oper- 

 culum. 



The Rev. A. M. Norman states that if the habitats 

 given by various authors are correct, the range of this 

 species is most extraordinary. No other Polyzoa — 

 probably very few marine animals — have so extensive 

 a distribution. 



FAMILY IV. BIOELLARID^. 



Zooecia rather loosely united in two or more series, or 

 disjunct; ohconic, or boat-shaped, the ajyerttire usually 

 occupying a large proportion of the front. Avicularia, 

 ivhen present, capitate, pedunculate, and jointed. Zoa- 

 rium not articulated, erect and phytoid, or composed of 

 a mmiber of cells connected by tubular processes. — T. H. 



