BRITISH ZOOPHYTES. 315 



growth and beauty under the lens is a very favourite 

 specimen amongst zoophytologists. The polypide has 

 eight tentacles. 



Genus III. Bowerbankia, Farrc. 



(In honour of Dr. Bowerbank.) 



Zooecia ovate, disjunct, clustered, often subspirally 

 arranged. Zoarium repent or erect. Polypide with a 

 small number of tentacles (8 — 10) and a gizzard. — 

 T. H. 



1. B. iMBRiCATA, Adams. Plate XXIII. fig. 5. 

 Sertularia imbricata {Adams, Thompson, Stewart), 



Valkeria glomerata {Coldstream), Serialaria imbricata 

 et verticillata {Templeton), Valkeria imbricata (6r. /., 

 R. Q. G.), B. densa {Farre, G. J., Van Ben.). 



Hab. : Common. Menai Straits, Jersey {A. 8. P.). 



This is an easily recognized species, although its 

 appearance certainly does not suggest that it is an 

 animal. The stem is a long slender thread, irregularly 

 branched, and the zooecia occur at intervals in groups. 

 Sometimes, however, it occurs as a repent form. The 

 polypide has ten tentacles, each of which has a single 

 row of setse along the back. 



The colony attains a height of 2 — 3 inches. 



2. B. GAUD AT A, Hincks. 

 Yalkeria caudata {Hincks). 

 Hab.: Ilfracombe {Leipner). 



This resembles the repent form of B. imbricata, but 

 the zooecia are smaller, and "terminate below in a 

 somewhat spur-like extremity.^^ The polypide has 

 eight tentacles. 



3. B. PUSTULOSA, E. and 8. 



