122 



KEY. T. HINCKS ON POLYZOA 



Family Bicellartid^:. 

 Bttgulella, Verrill. 



Zoariwn erect, composed of single series of zocecia, each of tliem 

 rising from the upper portion of the dorsal surface of the one 

 below it ; branches given off from the sides of the cells. 



Zooecia elongate, clavate, much attenuated below ; aperture 

 occupying a large proportion of the front. Avicularia articulated 

 and capitate. 



Bitgulella clavata, n. sp. [Woodcut.] 



Zooecia large, elongate, subtruncate at the top, ovate above, 

 tapering off below the aperture; aperture elongate-oval, occu- 

 pying about two thirds of the length of the cell, destitute of 

 spines, with a membranous covering ; orifice semicircular, at the 

 very top of the aperture ; a rather small articulated avicularium 

 on each side, at the summit of the zooecium. Ooecium (?). 



Hob. On Nellia oculata, Busk. 



I am only able to give a very imperfect account of this species. 

 Two or three small specimens occurred, and several camera-lucida 

 sketches were taken from them. But before I had the opportu- 

 nity of making a careful study of the characters, the specimens 

 were unfortunately lost. As several sketches were made, all 



llw/ulclla clavata, greatly enlarged. 



agreeing Bubstantially,tbere can be no doubt about the leading cha- 

 racters ; and I hope the brief diagnosis given above, in conjunction 



