96 Descriptions of Kevj, or Little Known, Polyzoa. 



less lobecl or discoid. Cells slender, arranged in radiating 

 lines, adherent in greater part, but with the orifices 

 upturned and produced into long peristomes which, as well 

 as the cells, are mostly connate in each series. Surface of 

 cells punctate as in the last species. Ovicells considerable 

 inflations, parallel to the axis of the cells. Colour, "bluish- 

 purple. 



Port Phillip Heads. 



This species is at once distinguished by the peculiar 

 arrangement of the cells and their peristomes. These are 

 arranged in more or less perfect rows, radiating obliquely in 

 the direction of the original lobules, those of each row being 

 united in broken series quite to the orifices of the peris- 

 tomes, so as to form wall-like rows. The number of cells 

 united in each group varies from two to six or seven. The 

 cells are, however, not all connate, many remaining single, 

 and not being arranged in definite order, but the general 

 arrangement is usually very marked and characteristic. 



Tubwlipora clavata, n. sp. Plate II., fig. 3. 



Zoarium divided into clavate branches. Cells adherent or 

 immersed, except at the extremities, which are free and 

 turned forwards, arranged in oblique lines from the middle 

 of the branch to the edges ; surface punctate ; mouth 

 circular. 



Port Phillip Heads. Dredged by Mr. Wilson and myself 

 I have only seen one perfect specimen, for which I am 

 indebted to Mr. Wilson. It consists of seven branches, 

 united at their bases. The cells are closely packed, distinct 

 but adherent, except at the extremities, which are free and 

 turned forwards ; they are punctate, with a circular mouth 

 frequently produced into a short tubular peristome. They 

 are arranged in nearly regular oblique lines from the middle 

 of the branch to the edge, and each row has three to five at 

 tire narrow parts and six or seven at the expanded clavate 

 portion ; in many of the rows the cells are entirely connate. 

 The front of each branch is considerably elevated. 



Diastopora lineata, n. sp. Plate III., fig. 1. 



Zoarium thick, adnate. Cells arranged in raised radiating 

 rows, in single series at first, but at the extremities increasing 

 to two or three. Intermediate surface and sides of rows. 

 finely punctate and transversely ridged. 



