Descriptions of New, or Little Known, Polyzoa. 95 



They are thickly punctate, and occasionally trans- 

 versely rugose. The surface of the zoarium between the 

 cells is glistening with numerous elevated white puncta 

 or (from the perforation of these) white-bordered pores, 

 frequently arranged in transverse curved rows, between 

 which there are often also slight corrugations. The 

 opening of the peristome is circular in the central cells and 

 triangular in the marginal, the orifices of the cells being of 

 the same shape. It differs from the other Victorian species, 

 and is at the same time allied to Diastopora in the greater 

 immersion of the cells, and in their separation by portions of 

 the general surface of the zoarium, 



Tubulipora pulchra, n. sp. Plate II., fig. 1. 



Zoarium at first flabelliform, but becoming, by growth, of 

 various forms. Ceils in greater part decumbent and united 

 to each other laterally, extremities ' free and more or less 

 erect, narrowed. towards the mouth, which is produced into 

 a long, cylindrical peristome: surface thickly punctate, 

 except the peristome, which is smooth, glossy, and usually 

 annularly lined. Ovicells forming large inflations, elon- 

 gated transversely to the direction of the cells. Colour, 

 white. 



Frequent on shells and algse. 



This species is closely related to the European T. flabel- 

 laris, of which it may prove to be a variety. It originates 

 in the same manner by a single or multiple flabelliform 

 growth, which ultimately assumes various forms, usually 

 lobed at the margins. The cells are distinct throughout 

 their whole length, for the greater part decumbent, and 

 adhering to each other, but free and bent forwards towards 

 the mouth. They are arranged in irregular, radiating or 

 divergent lines, and are slightly contracted towards the 

 mouth, which is nearly circular and produced into a long, 

 nearly erect peristome. Their surface is glassy, thickly 

 covered with round, raised white puncta, which, from the 

 opening of the summits, usually appear as white-bordered 

 pores. The surface of the cells is sometimes annularly 

 rugose, and the mouth is occasionally closed by a punctate 

 membrane. The ovicells are large, stretching across the 

 lobules at the base or middle. 



Tubulipova connata, n. sp. Plate II, fig. 2. 

 Zoarium originally flabelliform, becoming usually more or 



