92 BICELLARIID.E. 



BUOULA MURRAYANA, Johnston*. 

 Plate XIV. figs. 2-9. 



FLCSTRA MURRAYAXA, Johnst. Br. Z. ed. 2, 347, pi. Ixiii. figs. 5, 6. 



?? SERTULAKIA SPIRALIS, Olivi, Zool. Adriat. 291 & 313, pi. vi. fig. 2 a, A. 



FLABELLARIA SPIRALIS, Gray, Cat. Brit. Bad. 106. 



AVICELLA MULTISPINA, Van Ben. Bull. Acad. Roy. Belg. xv. no. 2 des 



BuUetins (1849), 76, pi. x. figs. 7, 8 (p. 10, sep.). 

 BUGULA MURRAYANA, Busk, B.M. Cat. i. 46, pi. lix. : Smitt, forma 1 and 



forma 2, B. QUADRIDENTATA, I.e. 291 and 349, pi. xviii. 



figs. 19-26 (?27). 

 MEM PEA FRUTICOSA, Packard, List Labrador Mar. An. 9, pi. i. fig. 3. 



Zoarium consisting of a number of shoots, much divided 

 dichotomously into broad ribbon-like segments, trun- 

 cate at the top, and forming entangled, spreading, 

 bushy tufts. Zoaecia multiserial (4-12 rows), alter- 

 nate, oblong, truncate above, and slightly narrowed 

 below (boat-shaped) ; aperture reaching nearly to the 

 bottom ; an erect spinous process at each angle above, 

 and a variable number of marginal spines (2-5 on the 

 outer edge and 1-3 on the inner) curving inwards f. 

 Avicularia on the front of the cells below the aperture, 

 (those on the marginal cells about three times as large 

 as the rest,) elongated, the head moderately arched, well 

 rounded behind, surface smooth and polished; beak 

 very short in proportion, with a much bent extremity ; 

 mandible long, sharply pointed. Ocecia large, subglobose, 

 glistening, almost membranous, with radiating striae. 



Radical fibres very long and stout, and wrinkled trans- 

 versely, given off from the side of the marginal cells 

 towards the lower part of the shoots. 



Height about 1| inch. Of a light straw-colour when 

 dry. 



* The specific name originated with Mr. Bean, and was communicated by 

 him in MS. to Dr. Johnston, by whom it was first published. 



t There is occasionally a spine at the bottom of the cell near the place 

 usually occupied by the aviculariuin. 



